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“Freshman Kishino discovers classmate Oshii's weak bladder secret and vows to protect her from embarrassment.”

Kusozako Boukou Oshii-san

クソザコボウコウ押井さん

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51,783 rank · 530 readers · 2 favorites

Seinen School Romance Ecchi

2024 - Present · Manga

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Synopsis

Freshman Kishino discovers classmate Oshii's weak bladder secret and vows to protect her from embarrassment.

The high school freshman Mamoru Kishino was expecting a fateful encounter and he met the pretty girl classmate Koko Oshii, and happened to know her secret. To his surprise, he found out Oshii-san's bladder is super weak...!! To not leak this secret, Kishino swore to protect Oshii-san('s bladder). (Source: Nihon Bungeisha, translated)