Edit
Uses several aliases.
Tanuma Yuuichirou (田沼雄一郎) is used for heterosexual themed h works and other works
Akio Takami (秋緒たかみ) is used for shota works.
Shiroginu (しろぎぬ) is used for non-shota homosexual work.
Tororoimo 3 gou (とろろいも3号) is used for some works related to Tororoimo (とろろいも) circle.
URLs
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https://www.pixiv.net/users/649346
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https://www.pixiv.net/users/3736994
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https://www.pixiv.net/stacc/ryutairikigaku
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https://www.pixiv.net/stacc/tanumayuichirou
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https://twitter.com/tanumakio
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https://twitter.com/intent/user?user_id=399042227
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https://sketch.pixiv.net/@ryutairikigaku
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http://tanumaakio.blog.fc2.com
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https://www.amazon.co.jp/-/e/B004L9MY0K/
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https://twitter.com/tanumayuichirou
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