Min Jae-won is attracting attention at the company for his excellent work skills and good looks. He suddenly breaks up after receiving a unilateral breakup notice from his older lover, Hwang-chan, whom he thought he was getting along with. Jae-won, who was in the sadness and depression of parting, meets Chan's 'ex-boyfriend' while looking back at his memories. Not long after we broke up, I met a new boyfriend... ?! But he broke up with his boyfriend too? The two search for traces of Hwang-chan and find an 'ex-boyfriend report' written by Hwang-chan. Why did you write and collect these things... ?