"I'm sorry if my child bothers you, but please be nice to me." The beautiful woman yu who moved in next to kentarou is a single mother who recently divorced. "I've been looking for you, hiding in a place like this!" A few days later, when kentarou returned home, yu was arguing with a man. From the content, it seemed that the man was her ex-husband, about to hit yu. "What are you doing? I'll call the police!" Kentarou quickly stepped in to help yu, and the distance between yu and kentarou quickly narrowed...