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Oshigama is an abbreviation for "to hold back your pee." More and more people are becoming addicted to the liberating feeling of releasing pee after holding back to the limit. [Synopsis] One afternoon, on her way home from shopping, Kana couldn't find her key at the door and couldn't resist, so she leaked it. Kazuya, my nephew who lives nearby, happened to see it. Ever since that day, Kazuya, with Kana's embarrassing state burned into his mind, ambushes her...