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ショタヒーロー大ピンチ!?おねえさん怪人の甘すぎる罠
しょたひーろー だいぴんち !? おねえさん かいじん の あますぎる わな
est. Rough estimate based on volume count, reprints and magazine — not an official figure
External databases: MADB
How to compare editions, collected volumes and ISBNs / Sources, updates and corrections