Bingyu (Kentaro Ito) is a graduate student majoring in biology.In the cafe where he works, there is a woman who visits regularly every week.Her name is Ima (Kuryama Chiaki).Bingyu is gradually attracted by this smart and unique woman.

One day, Yima took the initiative to say to Bingyu: “ I want to eat Montbron cake... Do you want to go with Bingyu?” Bingyu told himself that this was just a polite word.However, it happened that day he had a job arrangement and missed the agreed time.But after get off work, he couldn't help but pass by the cake shop and saw Yima standing there alone.

Bingyu quickly apologized to her, but Yima smiled and said: “ I have been thinking about you for the time I have been waiting for you, but I feel very happy.” Bingyu mustered up the courage to take a step, but Yima told him: “ Before that, I have something I want to tell you first.” 

When Bingyu came to Ima's house, she found two men who were close to her in the house - Yafu (Chenga Kennaga) and Tomoki (Maruyama Tomoki).Faced with Bingyu's confusion, Yima calmly revealed the truth: “They are both my lovers.”

She looked at Bingyu gently and said: “I like you, Bingyujun.But, I also like to go to Yafu.”

I have always believed that love is Bingyu, which belongs exclusively to two people. Can I accept Yima's unique view of love?A love story that is both spicy and sweet, kicks off!