• Book Name: Haikyuu!! - Shinchan ya de (Doujinshi) Manga
• Alternative(s): haikyuu dj - It's Shin-chan
• Genre(s): Oneshot Doujinshi
• Author(s): Pisuen (Haatofuru Niku)
• Status: Completed Download Manga
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Summary: The twins arrive at school and discover that Kita-san has transformed into a child version of himself.