Kengo and Mai have been married for three years. Mai used to work as a designer, suffers from depression due to issues at work. Nevertheless, Kengo tries his best to bring back Mai's smile, supporting her even though she can no longer work and showing her love as he usually does. Mai's spirit begins to improve thanks to Kengo's devotion, but what kind of future awaits them?

Tamami is stuck in her job and life. One day, she hears a song from her youth and her mind goes back 15 years. In high school, the reserved Tamami meets Rin, who plays the piano. Through their shared love of music the two become friends, but drift apart. Now in her thirties, she discovers that Rin has become a musician when she posts a picture on social media.