Mangaka. The author of Naisho no Tsubomi.
Japanese name: やぶうち 優 (Yabuuchi Yuu)
Site name: Utopia
https://twitter.com/Utopia_SM
https://twitter.com/intent/user?user_id=1692957876
http://www.amazon.co.jp/やぶうち-優/e/B004L9RI1K/
http://www.mangaupdates.com/authors.html?id=549
http://en.wikipedia.org/wiki/Yū_Yabūchi
http://ja.wikipedia.org/wiki/やぶうち優
https://www.animenewsnetwork.com/encyclopedia/people.php?id=63533
http://blog.goo.ne.jp/yabuuchi_utopia
