Han Yeo-Reum (Jung Yu-Mi) is in love with her boyfriend, but her ex-boyfriend, Kang Tae-Ha (Eric), who realizes his faults appears in front of her. 

A story about a woman who is having conflict between new love and old love.

There is a woman who has just started her new relationship, but her ex-boyfriend is back regretting his past. This is a love triangle story of three young people.