Min Jae-Won is attracting attention at the company for his excellent work skills and good looks. He suddenly receives a breakup notice from his older lover, Hwang-Chan, whom he thought he was getting along with. Jae-Won, dealing with the sadness and depression of parting, meets Chan's 'ex-boyfriend' while looking back over 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' he has written. Why did you write and collect these things...?

(Source: Ridibooks, translated)

Note: Chapter count includes a prologue.