Nando, who was good at both morals and academics, fell in love with Paul, the boyfriend of his deceased "girl-hunting" sister. However, Paul was the boss of a public relations company and had a disgraceful experience before. Nando, who was not confident about their relationship, left without saying goodbye after Paul's "cheating" and settled in a city in the north with Ding Ning, whom he met later... But a few years later, he was finally found by the frustrated Paul... Beautiful men with different love affairs performed a section of "robbing someone" that they were most unhappy with... "Not all birds fly/when summer is over/there are still flowers that have not yet bloomed"--by a strange combination of circumstances, Gantang, a best friend who is addicted to a trivial and burdensome marriage life, met Paul and became friends with her. Paul, who is in a rough love life, and Gantang, who is burdened with a heavy burden, will re-interpret what kind of life journey...