A few years ago, Chiharu lost her beloved husband to illness and has since lived with her daughter Nozomi in a 1LDK apartment. She believes that Nozomi's constant smile filled the void left in her heart by her husband's passing, and Chiharu never forgot her gratitude towards her daughter. One day, she learns that Nozomi is dating Norihiro, a college dropout who lives next door. Chiharu can't hide her joy at the thought of her daughter growing up. However, an event that follows will drastically change the mother-daughter relationship…
