• Book Name: Touhou - Maiden's Heart Is Still Immature (Doujinshi) Manga
• Alternative(s): 乙女心は半人前
• Genre(s): Doujinshi Ecchi Yuri
• Author(s): Neko No Sakegoto (Circle), Mioh Sazanami
• Status: Completed Download Manga
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Summary: Valentine’s Day is coming up, and Youmu wonders just what Yuyuko’s true feelings regarding the date are. Yuri, Yuyuko x Youmu.