https://www.pixiv.net/users/6072824
https://www.pixiv.net/stacc/030841
https://twitter.com/osawa841
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https://sketch.pixiv.net/@030841
https://www.mangaupdates.com/authors.html?id=16661
https://bsky.app/profile/ohsawa841.bsky.social
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http://www.doujinshi.org/browse/author/101099/Oosawa-Yayoi
