diff --git a/.github/workflows/test.yaml b/.github/workflows/test.yaml
index 69d4d8eaa..fc6a4f15f 100644
--- a/.github/workflows/test.yaml
+++ b/.github/workflows/test.yaml
@@ -55,6 +55,7 @@ jobs:
       DANBOORU_PAWOO_CLIENT_SECRET: ${{ secrets.DANBOORU_PAWOO_CLIENT_SECRET }}
       DANBOORU_BARAAG_CLIENT_ID: ${{ secrets.DANBOORU_BARAAG_CLIENT_ID }}
       DANBOORU_BARAAG_CLIENT_SECRET: ${{ secrets.DANBOORU_BARAAG_CLIENT_SECRET }}
+      DANBOORU_FANTIA_SESSION_ID: ${{ secrets.DANBOORU_FANTIA_SESSION_ID }}
       DANBOORU_DISCORD_WEBHOOK_ID: ${{ secrets.DANBOORU_DISCORD_WEBHOOK_ID }}
       DANBOORU_DISCORD_WEBHOOK_SECRET: ${{ secrets.DANBOORU_DISCORD_WEBHOOK_SECRET }}
       DANBOORU_RAKISMET_KEY: ${{ secrets.DANBOORU_RAKISMET_KEY }}
diff --git a/app/logical/artist_finder.rb b/app/logical/artist_finder.rb
index 74bf0e650..3e4db864a 100644
--- a/app/logical/artist_finder.rb
+++ b/app/logical/artist_finder.rb
@@ -46,6 +46,8 @@ module ArtistFinder
     "facebook.com", # https://www.facebook.com/LuutenantsLoot
     "fantia.jp", # http://fantia.jp/no100
     "fantia.jp/fanclubs", # https://fantia.jp/fanclubs/1711
+    "fantia.jp/posts", # https://fantia.jp/posts/20000
+    "fantia.jp/products", # https://fantia.jp/products/10000
     "fav.me", # http://fav.me/d9y1njg
     /blog-imgs-\d+(?:-origin)?\.fc2\.com/i,
     %r{blog\.fc2\.com(/\w)+/?}i, # http://blog71.fc2.com/a/abk00/file/20080220194219.jpg
diff --git a/app/logical/source/url.rb b/app/logical/source/url.rb
index 7cb054f08..a054dbe53 100644
--- a/app/logical/source/url.rb
+++ b/app/logical/source/url.rb
@@ -23,6 +23,7 @@ module Source
       Source::URL::ArtStation,
       Source::URL::DeviantArt,
       Source::URL::Fanbox,
+      Source::URL::Fantia,
       Source::URL::Foundation,
       Source::URL::HentaiFoundry,
       Source::URL::Lofter,
diff --git a/app/logical/source/url/fantia.rb b/app/logical/source/url/fantia.rb
new file mode 100644
index 000000000..1dc1540be
--- /dev/null
+++ b/app/logical/source/url/fantia.rb
@@ -0,0 +1,90 @@
+# frozen_string_literal: true
+
+# Unparsed:
+# https://fantia.jp/asanagi
+
+class Source::URL::Fantia < Source::URL
+  attr_reader :full_image_url
+
+  def self.match?(url)
+    url.domain == "fantia.jp"
+  end
+
+  def parse
+    case [host, *path_segments]
+
+    # posts:
+    # https://c.fantia.jp/uploads/post/file/1070093/main_16faf0b1-58d8-4aac-9e86-b243063eaaf1.jpeg (sample)
+    # https://c.fantia.jp/uploads/post/file/1070093/16faf0b1-58d8-4aac-9e86-b243063eaaf1.jpeg
+    # https://cc.fantia.jp/uploads/post_content_photo/file/4563389/main_a9763427-3ccd-4e51-bcde-ff5e1ce0aa56.jpg?Key-Pair-Id=APKAIOCKYZS7WKBB6G7A&Policy=eyJTdGF0ZW1lbnQiOlt7IlJlc291cmNlIjoiaHR0cHM6Ly9jYy5mYW50aWEuanAvdXBsb2Fkcy9wb3N0X2NvbnRlbnRfcGhvdG8vZmlsZS80NTYzMzg5L21haW5fYTk3NjM0MjctM2NjZC00ZTUxLWJjZGUtZmY1ZTFjZTBhYTU2LmpwZyIsIkNvbmRpdGlvbiI6eyJEYXRlTGVzc1RoYW4iOnsiQVdTOkVwb2NoVGltZSI6MTY0NjkxMzk3OH19fV19&Signature=jyW5ankfO9uCHlKkozYU9RPpO3jzKTW2HuyXgS81i~cRgrXcI9orYU0IXuiit~0TznIyXbB7F~6Z790t7lX948PYAb9luYIREJC2u7pRMP3OBbsANbbFE0o4VR-6O3ZKbYQ4aG~ofVEZfiFVGoKoVtdJxj0bBNQV29eeFylGQATkFmywne1YMtJMqDirRBFMIatqNuunGsiWCQHqLYNHCeS4dZXlOnV8JQq0u1rPkeAQBmDCStFMA5ywjnWTfSZK7RN6RXKCAsMTXTl5X~I6EZASUPoGQy2vHUj5I-veffACg46jpvqTv6mLjQEw8JG~JLIOrZazKZR9O2kIoLNVGQ__
+    # from file download: https://cc.fantia.jp/uploads/post_content/file/1830956/cbcdfcbe_20220224_120_040_100.png?Key-Pair-Id=APKAIOCKYZS7WKBB6G7A&Policy=eyJTdGF0ZW1lbnQiOlt7IlJlc291cmNlIjoiaHR0cHM6Ly9jYy5mYW50aWEuanAvdXBsb2Fkcy9wb3N0X2NvbnRlbnQvZmlsZS8xODMwOTU2L2NiY2RmY2JlXzIwMjIwMjI0XzEyMF8wNDBfMTAwLnBuZyIsIkNvbmRpdGlvbiI6eyJEYXRlTGVzc1RoYW4iOnsiQVdTOkVwb2NoVGltZSI6MTY0NjkxNDU4Nn19fV19&Signature=d1nw8gs9vcshIAeEH4oESm9-7z6y4A7MfoIRRvtUtV9iqTNA8KM0ORuCI7NwEoYc1VHsxy9ByeuSBpNaJoknnc3TOmHFhVRcLn~OWpnWqiHEPpMcSEG7uGlorysjEPmYYRGHjE7LJYcWiiJxjZ~fSBbYzxxwsjroPm-fyGUtNhdJWEMNp52vHe5P9KErb7M8tP01toekGdOqO-pkWm1t9xm2Tp5P7RWcbtQPOixgG4UgOhE0f3LVwHGHYJV~-lB5RjrDbTTO3ezVi7I7ybZjjHotVUK5MbHHmXzC1NqI-VN3vHddTwTbTK9xEnPMR27NHSlho3-O18WcNs1YgKD48w__
+    #
+    # products:
+    # https://c.fantia.jp/uploads/product/image/249638/main_fd5aef8f-c217-49d0-83e8-289efb33dfc4.jpg
+    # https://c.fantia.jp/uploads/product_image/file/219407/main_bd7419c2-2450-4c53-a28a-90101fa466ab.jpg (sample)
+    # https://c.fantia.jp/uploads/product_image/file/219407/bd7419c2-2450-4c53-a28a-90101fa466ab.jpg
+    in _, "uploads", image_type, ("file" | "image"), image_id, /(?:\w+_)?([\w-]+\.\w+)/ => file
+      #  post_id/product_id == image_id only for the first image in a post/product
+      case image_type
+      when "post"
+        @post_id = image_id
+        @full_image_url = "https://c.fantia.jp/uploads/post/file/#{@post_id}/#{$1}"
+      when "product"
+        @product_id = image_id
+        @full_image_url = "https://c.fantia.jp/uploads/product/image/#{@product_id}/#{$1}"
+      when "product_image"
+        @full_image_url = "https://c.fantia.jp/uploads/product_image/file/#{image_id}/#{$1}"
+      else
+        @full_image_url = original_url
+      end
+
+    # https://fantia.jp/posts/1143951/download/1830956
+    in _, "posts", post_id, "download", image_id
+      @post_id = post_id
+      @download_id = image_id
+
+    # https://fantia.jp/posts/1148334
+    in _, "posts", /\d+/ => post_id
+      @post_id = post_id
+
+    # https://fantia.jp/products/249638
+    in _, "products", /\d+/ => product_id
+      @product_id = product_id
+
+    # https://fantia.jp/fanclubs/64496
+    # https://fantia.jp/fanclubs/1654/posts
+    in _, "fanclubs", /\d+/ => fanclub_id, *rest
+      @fanclub_id = fanclub_id
+
+    else
+    end
+  end
+
+  def image_url?
+    @full_image_url.present?
+  end
+
+  def downloadable?
+    @download_id.present?
+  end
+
+  def page_url
+    if @post_id.present?
+      "https://fantia.jp/posts/#{@post_id}"
+    elsif @product_id.present?
+      "https://fantia.jp/products/#{@product_id}"
+    end
+  end
+
+  def work_id
+    @post_id || @product_id
+  end
+
+  def work_type
+    if @post_id.present?
+      "post"
+    elsif @product_id.present?
+      "product"
+    end
+  end
+end
diff --git a/app/logical/sources/strategies.rb b/app/logical/sources/strategies.rb
index 2f949c1fc..3ced69356 100644
--- a/app/logical/sources/strategies.rb
+++ b/app/logical/sources/strategies.rb
@@ -24,6 +24,7 @@ module Sources
         Strategies::Foundation,
         Strategies::Plurk,
         Strategies::TwitPic,
+        Strategies::Fantia,
       ]
     end
 
diff --git a/app/logical/sources/strategies/fantia.rb b/app/logical/sources/strategies/fantia.rb
new file mode 100644
index 000000000..824ce9ae2
--- /dev/null
+++ b/app/logical/sources/strategies/fantia.rb
@@ -0,0 +1,171 @@
+# frozen_string_literal: true
+
+module Sources::Strategies
+  class Fantia < Base
+    def self.enabled?
+      Danbooru.config.fantia_session_id.present?
+    end
+
+    def match?
+      Source::URL::Fantia === parsed_url
+    end
+
+    def site_name
+      parsed_url.site_name
+    end
+
+    def image_urls
+      return [parsed_url.full_image_url] if parsed_url.image_url?
+      return [image_from_downloadable(parsed_url)] if parsed_url.downloadable?
+
+      images = images_for_post.presence || images_for_product.presence || []
+
+      full_images = images.compact.map do |image|
+        parsed = Source::URL.parse(image)
+        if parsed&.image_url?
+          parsed.full_image_url
+        elsif parsed&.downloadable?
+          image_from_downloadable(parsed)
+        else
+          image
+        end
+      end
+      full_images.compact.uniq
+    end
+
+    def image_from_downloadable(url)
+      resp = http.head(url)
+      return url if resp.status != 200
+      resp.uri.to_s
+    end
+
+    def images_for_post
+      return [] unless api_response.present?
+      images = [api_response.dig("post", "thumb_micro")]
+      api_response.dig("post", "post_contents").to_a.map do |content|
+        next if content["visible_status"] != "visible"
+
+        case content["category"]
+        when "photo_gallery"
+          content["post_content_photos"].to_a.map { |i| images << i.dig("url", "original") }
+        when "file"
+          images << image_from_downloadable("https://www.fantia.jp/#{content["download_uri"]}")
+        when "blog"
+          begin
+            sub_json = JSON.parse(content["comment"])
+          rescue Json::ParserError
+            sub_json = {}
+          end
+          sub_json["ops"].to_a.map { |js| images << js.dig("insert", "fantiaImage", "url") }
+        end
+      end
+      images
+    end
+
+    def images_for_product
+      html_response&.css(".product-gallery-item .img-fluid").to_a.map do |element|
+        element["src"] unless element["src"] =~ %r{/fallback/}
+      end.compact
+    end
+
+    def page_url
+      parsed_url.page_url || parsed_referer&.page_url
+    end
+
+    def tags
+      case work_type
+      when "post"
+        api_response&.dig("post", "tags").to_a.map do |tag|
+          [tag["name"], "https://fantia.jp/posts?tag=#{tag["name"]}"]
+        end
+      when "product"
+        html_response&.css(".product-category a").to_a.map do |element|
+          tag_name = element.text.delete_prefix("#")
+          [tag_name, "https://fantia.jp/products?product_category=##{tag_name}"]
+        end
+      else
+        []
+      end
+    end
+
+    def other_names
+      case work_type
+      when "post"
+        [api_response&.dig("post", "fanclub", "creator_name")].compact
+      when "product"
+        [html_response&.at(".fanclub-name a")&.text].compact
+      end
+    end
+
+    def profile_url
+      case work_type
+      when "post"
+        fanclub_id = api_response&.dig("post", "fanclub", "id")
+        return unless fanclub_id.present?
+        "https://fantia.jp/fanclubs/#{fanclub_id}"
+      when "product"
+        href = html_response&.at(".fanclub-name a")&.[]("href")
+        return unless href.present?
+        URI.join("https://fantia.jp/", href).to_s
+      end
+    end
+
+    def artist_commentary_title
+      case work_type
+      when "post"
+        api_response&.dig("post", "title")
+      when "product"
+        html_response&.at(".product-title")&.text
+      end
+    end
+
+    def artist_commentary_desc
+      case work_type
+      when "post"
+        api_response&.dig("post", "comment")
+      when "product"
+        html_response&.at(".product-description")&.text
+      end
+    end
+
+    def dtext_artist_commentary_desc
+      DText.from_html(artist_commentary_desc)
+    end
+
+    def normalize_for_source
+      page_url
+    end
+
+    def work_type
+      parsed_url.work_type || parsed_referer&.work_type
+    end
+
+    def work_id
+      parsed_url.work_id || parsed_referer&.work_id
+    end
+
+    def api_response
+      return {} unless work_type == "post"
+      api_url = "https://fantia.jp/api/v1/posts/#{work_id}"
+
+      response = http.cache(1.minute).get(api_url)
+      return {} unless response.status == 200
+
+      JSON.parse(response)
+    rescue JSON::ParserError
+      {}
+    end
+
+    def html_response
+      return nil unless work_type == "product"
+      response = http.cache(1.minute).get("https://fantia.jp/products/#{work_id}")
+
+      return nil unless response.status == 200
+      response.parse
+    end
+
+    def http
+      Danbooru::Http.new.cookies(_session_id: Danbooru.config.fantia_session_id)
+    end
+  end
+end
diff --git a/app/models/artist_url.rb b/app/models/artist_url.rb
index a28e8acb7..6a14df295 100644
--- a/app/models/artist_url.rb
+++ b/app/models/artist_url.rb
@@ -109,8 +109,8 @@ class ArtistURL < ApplicationRecord
   def priority
     sites = %w[
       Pixiv Twitter
-      ArtStation baraag.net BCY Deviant\ Art Hentai\ Foundry Foundation Nico\ Seiga Nijie pawoo.net Pixiv\ Fanbox Pixiv\ Sketch Plurk Tinami Tumblr
-      Ask.fm Booth.pm Facebook Fantia FC2 Gumroad Instagram Ko-fi Livedoor Lofter Mihuashi Mixi.jp Patreon Piapro.jp Picarto Privatter Sakura.ne.jp Stickam Skeb Twitch Weibo Youtube
+      ArtStation Baraag BCY Deviant\ Art Hentai\ Foundry Fantia Foundation Lofter Nico\ Seiga Nijie Pawoo Pixiv\ Fanbox Pixiv\ Sketch Plurk Tinami Tumblr Weibo
+      Ask.fm Booth.pm Facebook FC2 Gumroad Instagram Ko-fi Livedoor Mihuashi Mixi.jp Patreon Piapro.jp Picarto Privatter Sakura.ne.jp Stickam Skeb Twitch Youtube
       Amazon Circle.ms DLSite Doujinshi.org Erogamescape Mangaupdates Melonbooks Toranoana Wikipedia
     ]
 
diff --git a/config/danbooru_default_config.rb b/config/danbooru_default_config.rb
index d10141f32..3e8388f90 100644
--- a/config/danbooru_default_config.rb
+++ b/config/danbooru_default_config.rb
@@ -311,6 +311,11 @@ module Danbooru
       nil
     end
 
+    # Your Fantia "_session_id" cookie. Login to Fantia then use the
+    # devtools to find the "_session_id" cookie.
+    def fantia_session_id
+    end
+
     # A list of tags that should be removed when a post is replaced. Regexes allowed.
     def post_replacement_tag_removals
       %w[replaceme .*_sample resized upscaled downscaled md5_mismatch
diff --git a/test/functional/uploads_controller_test.rb b/test/functional/uploads_controller_test.rb
index 01900ef92..f0c14ed47 100644
--- a/test/functional/uploads_controller_test.rb
+++ b/test/functional/uploads_controller_test.rb
@@ -352,6 +352,10 @@ class UploadsControllerTest < ActionDispatch::IntegrationTest
         should_upload_successfully("https://www.plurk.com/p/om6zv4")
 
         should_upload_successfully("https://gengar563.lofter.com/post/1e82da8c_1c98dae1b")
+
+        should_upload_successfully("https://c.fantia.jp/uploads/post/file/1070093/16faf0b1-58d8-4aac-9e86-b243063eaaf1.jpeg")
+        should_upload_successfully("https://fantia.jp/posts/1132267")
+        should_upload_successfully("https://fantia.jp/products/249638")
       end
     end
   end
diff --git a/test/unit/sources/fantia_test.rb b/test/unit/sources/fantia_test.rb
new file mode 100644
index 000000000..c9ed40d8a
--- /dev/null
+++ b/test/unit/sources/fantia_test.rb
@@ -0,0 +1,154 @@
+require "test_helper"
+
+module Sources
+  class FantiaTest < ActiveSupport::TestCase
+    def setup
+      super
+      skip "session_id cookie not set" unless Danbooru.config.fantia_session_id.present?
+    end
+
+    context "A c.fantia.jp/uploads/post/file/ url" do
+      should "work" do
+        url = "https://c.fantia.jp/uploads/post/file/1070093/16faf0b1-58d8-4aac-9e86-b243063eaaf1.jpeg"
+        source = Sources::Strategies.find(url)
+
+        assert_equal([url], source.image_urls)
+        assert_equal("豆ラッコ", source.other_names.first)
+        assert_equal("https://fantia.jp/fanclubs/27264", source.profile_url)
+        assert_equal("https://fantia.jp/posts/1070093", source.page_url)
+        assert_equal([], source.tags)
+        assert_equal("大きく育った心春ちゃん1", source.artist_commentary_title)
+        assert_equal("色々やります", source.artist_commentary_desc)
+        assert_downloaded(3_692_131, url)
+        assert_nothing_raised { source.to_h }
+      end
+    end
+
+    context "A c.fantia.jp/uploads/post_content_photo/ url" do
+      should "work" do
+        url = "https://cc.fantia.jp/uploads/post_content_photo/file/7087182/main_7f04ff3c-1f08-450f-bd98-796c290fc2d1.jpg?Key-Pair-Id=APKAIOCKYZS7WKBB6G7A&Policy=eyJTdGF0ZW1lbnQiOlt7IlJlc291cmNlIjoiaHR0cHM6Ly9jYy5mYW50aWEuanAvdXBsb2Fkcy9wb3N0X2NvbnRlbnRfcGhvdG8vZmlsZS83MDg3MTgyL21haW5fN2YwNGZmM2MtMWYwOC00NTBmLWJkOTgtNzk2YzI5MGZjMmQxLmpwZyIsIkNvbmRpdGlvbiI6eyJEYXRlTGVzc1RoYW4iOnsiQVdTOkVwb2NoVGltZSI6MTY0NjkyODAzN319fV19&Signature=wl2Nr9i1O5R5dDc7FB-8CKtRvyZPS6ZEFXn7Q74rBh9R2PZkpKuQUDDsJubgkYaHrqHEapcOdZczzZaM5kbRLXGPOnVFUE7vHKnXZTO~Z1-Z8Cqt823NKCR-AXBjYPhQoGP0pITLYkjhofy0FXg6RYJ0oNJPdKkdjcnwzr-nZfyaFgkrrQ5~LRDhW5HOgSNfvhJleMRLRgLtXbbgNnVwHmpFWNkFSwwmDcUTXTh4hrhQrOJ~xJmiQesSP1wPAE5ZZSBGsbUstOa5Y1nVu540wItR4VWLm-jjuMk9OIr-Nvxg0ocoP9WU13WrRbeMeL5X0xhxBYSxgVIKXko2BqMf5w__"
+        ref = "https://fantia.jp/posts/1132267"
+        source = Sources::Strategies.find(url, ref)
+
+        assert_equal("稲光伸二", source.other_names.first)
+        assert_equal("https://fantia.jp/fanclubs/1096", source.profile_url)
+        assert_equal(ref, source.page_url)
+        assert_equal(["オリジナル", "漫画"], source.tags.map(&:first))
+        assert_equal("黒い歴史(5)", source.artist_commentary_title)
+        assert_match(/^この回から絵はほとんど今と/, source.artist_commentary_desc)
+        assert_nothing_raised { source.to_h }
+      end
+    end
+
+    context "A c.fantia.jp/uploads/product/image/ url" do
+      should "work" do
+        url = "https://c.fantia.jp/uploads/product/image/249638/fd5aef8f-c217-49d0-83e8-289efb33dfc4.jpg"
+        source = Sources::Strategies.find(url)
+        tags = ["イラスト集", "CG集", "PNG", "オリジナル", "宮前詩帆", "春川朱璃愛", "夏川黒羽", "ASMR", "音声", "原神", "シニョーラ"]
+
+        assert_equal([url], source.image_urls)
+        assert_match(/電波暗室/, source.other_names.first)
+        assert_equal("https://fantia.jp/fanclubs/7", source.profile_url)
+        assert_equal("https://fantia.jp/products/249638", source.page_url)
+        assert_equal(tags, source.tags.map(&:first))
+        assert_equal("2021年9月更新分[PNG] - September 2021", source.artist_commentary_title)
+        assert_match(/This is the same as the image data updated in September 2021/, source.artist_commentary_desc)
+        assert_downloaded(288_801, url)
+        assert_nothing_raised { source.to_h }
+      end
+    end
+
+    context "A c.fantia.jp/uploads/product_image/file sample url" do
+      should "work" do
+        url = "https://c.fantia.jp/uploads/product_image/file/219407/main_bd7419c2-2450-4c53-a28a-90101fa466ab.jpg"
+        ref = "https://fantia.jp/products/249638"
+        source = Sources::Strategies.find(url, ref)
+
+        assert_equal(["https://c.fantia.jp/uploads/product_image/file/219407/bd7419c2-2450-4c53-a28a-90101fa466ab.jpg"], source.image_urls)
+        assert_equal("https://fantia.jp/fanclubs/7", source.profile_url)
+        assert_equal("https://fantia.jp/products/249638", source.page_url)
+        assert_equal("2021年9月更新分[PNG] - September 2021", source.artist_commentary_title)
+        assert_downloaded(613_103, url)
+        assert_nothing_raised { source.to_h }
+      end
+    end
+
+    context "A fantia.jp/posts/$id/download url" do
+      should "work" do
+        url = "https://fantia.jp/posts/1143951/download/1830956"
+        source = Sources::Strategies.find(url)
+
+        assert_match(%r{1830956/cbcdfcbe_20220224_120_040_100.png}, source.image_url)
+        assert_equal("松永紅葉", source.other_names.first)
+        assert_equal("https://fantia.jp/fanclubs/322", source.profile_url)
+        assert_equal("https://fantia.jp/posts/1143951", source.page_url)
+        assert_equal([], source.tags)
+        assert_equal("今日の一枚3186 (1:20+0:40+1:00)", source.artist_commentary_title)
+        assert_equal("今日の一枚3186 (1:20+0:40+1:00)", source.artist_commentary_desc)
+        assert_downloaded(14_371_816, url)
+        assert_nothing_raised { source.to_h }
+      end
+    end
+
+    context "A fantia.jp/posts/$id url" do
+      should "work" do
+        url = "https://fantia.jp/posts/1143951"
+        source = Sources::Strategies.find(url)
+
+        assert_equal("https://c.fantia.jp/uploads/post/file/1143951/47491020-a6c6-47db-b09e-815b0530c0bc.png", source.image_url)
+        assert_match(%r{1830956/cbcdfcbe_20220224_120_040_100.png}, source.image_urls.second)
+        assert_equal("松永紅葉", source.other_names.first)
+        assert_equal("https://fantia.jp/fanclubs/322", source.profile_url)
+        assert_equal("https://fantia.jp/posts/1143951", source.page_url)
+        assert_equal([], source.tags)
+        assert_equal("今日の一枚3186 (1:20+0:40+1:00)", source.artist_commentary_title)
+        assert_equal("今日の一枚3186 (1:20+0:40+1:00)", source.artist_commentary_desc)
+        assert_downloaded(1_157_953, url)
+        assert_nothing_raised { source.to_h }
+      end
+    end
+
+    context "A fantia.jp/products/$id url" do
+      should "work" do
+        url = "https://fantia.jp/products/249638"
+        source = Sources::Strategies.find(url)
+        image_urls = %w[
+          https://c.fantia.jp/uploads/product/image/249638/fd5aef8f-c217-49d0-83e8-289efb33dfc4.jpg
+          https://c.fantia.jp/uploads/product_image/file/219406/c73bd7f9-a13a-48f7-9ac7-35309faa88c3.jpg
+          https://c.fantia.jp/uploads/product_image/file/219407/bd7419c2-2450-4c53-a28a-90101fa466ab.jpg
+          https://c.fantia.jp/uploads/product_image/file/219408/50aae3fd-11c5-4679-a584-e4276617d4b9.jpg
+          https://c.fantia.jp/uploads/product_image/file/219409/1e777b93-2672-4a5d-8076-91b3766d3664.jpg
+        ]
+
+        assert_equal(image_urls, source.image_urls)
+        assert_equal("https://fantia.jp/fanclubs/7", source.profile_url)
+        assert_equal("https://fantia.jp/products/249638", source.page_url)
+        assert_downloaded(288_801, url)
+        assert_nothing_raised { source.to_h }
+      end
+    end
+
+    context "A product url with no images" do
+      should "not get placeholder images" do
+        source = Sources::Strategies.find("https://fantia.jp/products/10000")
+        assert_equal([], source.image_urls)
+        assert_nothing_raised { source.to_h }
+      end
+    end
+
+    context "A deleted or non-existing fantia url" do
+      should "work" do
+        url1 = "https://fantia.jp/posts/12345678901234567890"
+        url2 = "https://fantia.jp/products/12345678901234567890"
+
+        source1 = Sources::Strategies.find(url1)
+        source2 = Sources::Strategies.find(url2)
+
+        assert_equal([], source1.image_urls)
+        assert_equal([], source2.image_urls)
+        assert_nothing_raised { source1.to_h }
+        assert_nothing_raised { source2.to_h }
+      end
+    end
+  end
+end