- 30 year old office lady Tsuyama Shio works at a conservative company. She is the only female full-time employee in her 30s. Sandwiched between an older male boss and younger female contract employees, she puts on a smile all the time and keeps paying attention to their needs, so as not to get herself hurt. She has no boyfriend and her only friend is the convenience store at night.
While she sees herself living alone for the rest of her life, she vaguely wonders if she will die alone. One day, Shio receives an order from the head office to transfer to a sales office which is on the verge of shutting down. On a night when it feels as if she will be crushed by loneliness, she meets Sakurai Yukiya who seems to be a new employee at the convenience store and feels small palpitations for him.
This job transfer spurs Shio to somehow change her life and she starts this by living in a shared house. Amidst all the difficulties, joy and troubles of living with others, she comes into contact with two very interesting men who also live together with her in the share house. Shio starts to develop feelings for one of the men, Sakurai Yukiya, but he in turn thinks he is in love with the other man, Kawaki Tappei, who has fallen for Shio... And hence begins a strange love triangle!