• Book Name: OTOKONOKO ZUKAN Manga
• Alternative(s): 好色野男孩; 男の子ずかん; An Illustrated Book of Boys
• Genre(s): Comedy Romance School Life Shoujo
• Author(s): Yokoyama Mayumi
• Year 2003
• Status: Completed Download Manga
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Summary: Boys are silly, sex-hungry, and naughty. This book studies boys, living creatures totally different from girls, in detail, to answer questions about boys and their behaviors.