学校一の美少女姉妹の借金を返したら一人暮らしの俺の家に押しかけられた「って恩返しとかいいから帰ってください」「駄目です」「嫌で～す☆」 (Associated Names)

Kagami Seiichiro was an inconspicuous and introverted male high school student. But one day, he stumbles upon a scene where the most beautiful girl in the class, Kamiyo Karen, is confronting a debt collector. Seiichiro, who had been making a large amount of money through special circumstances (and a genius-level talent for gambling), ends up…