She is about to turn 30 years old.
Just when she thought her marriage was going smoothly at, her boyfriend cheated on her on the day of her birthday and she was thrown into the bottom of her life.

On the way home from the wedding, she was crying because she was so fed up with herself that she couldn't even be happy for her friend's happiness, when her business partner, Ren Isshiki, appeared..

Waka thought that a boy too young for her was out of the question.
Waka thought so, but she can't take her eyes off the red-haired man who is too straight.

A love story about an older female office worker who dreams of a safe marriage, but is charmed by, dropped by, and doted on by a younger dog.