Dụ dỗ người yêu của chị gái Murakami Yuuka

Tale revolves around Kuroi, who’s living happily with his friend, suddenly finds himself attracted to Yuuka, his younger sister’s best friend, upon their first meeting. Yuuka, a lively and affectionate girl, openly teases and flirts with Kuroi, making it hard for him to resist her charms. As she will be staying for a while, Kuroi must decide whether to succumb to her allure or resist the temptation to cheat on his girlfriend.