Mother embraced by her daughter's boyfriend

Chiharu has been living in a 1LDK apartment with her daughter Nozomi since losing her beloved husband to illness a few years ago. Chiharu never forgot to express his gratitude to her daughter, thanks to Nozomi, who always kept a smile, that filled the hole in her loss of her husband. One day, he finds out that Nozomi is dating Norihiro, a repeat student who lives next door. Chiharu can't hide her joy, knowing that her daughter is now that age. However, after this, an event occurs that completely changes the relationship between mother and daughter...