Several years after losing her husband to illness, Chiharu Aso lives with her daughter Nozomi in a 1LDK apartment. The presence of her ever-smiling daughter helped ease the emotional void left by her husband's passing. One day, Chiharu discovers that Nozomi has started dating their neighbor, a ronin student named Norihiro. While she feels joy and emotion seeing her daughter begin a romantic relationship, this event soon triggers a dramatic shift in their mother-daughter relationship...