Yuki, a beautiful older woman who moved in next door, is a single mother. Asano was concerned about her, who had just gotten divorced and seemed to be having a hard time. One day, Asano, who wanted to help but couldn't muster up the courage to help, witnessed an argument between Yuki and her ex-husband. She immediately gets in between her ex-husband's sword attack, which looks like he's about to attack her, but instead ends up getting beaten up. His self-centered actions hit Yuki in the chest, and the sense of distance between the two deepens. Their relationship develops from just neighbors to an irreplaceable one.
