Atsuhisa is an ordinary man living with his wife Natsumi and a five-year-old daughter Suzu.

 

Atsuhisa and Natsumi have been friends with Takeda since high school. Once dreamed of becoming singers, Takeda and Atsuhisa are now taking Chinese and English lessons, hoping to become businessmen one day.

 

One day, Astuhisa discovers that Natsumi is having an affair, and Natsumi asks Atsuhisa for a divorce.