Even though he has a girlfriend living with him, the college girl Koiro who lives next door suddenly visits with homemade food saying, "I made too much..." The man initially declines but gives in to her sad upward glance and lets her into his room. Then Koiroha, as if she were the girlfriend, stood in the kitchen and started washing dishes and cleaning on her own. She showed no signs of leaving but instead settled in more deeply. Furthermore, she gradually eroded the rationality of men who already had girlfriends with natural-feeling body touches or sudden kisses. "She's coming back," I desperately try to keep my wits about me, but the sweet and dangerous temptation of Koiro doesn't stop.
