I'm Here to Take Revenge

Kang Yooyu was used and abandoned by Seo Hosu, who was his secret lover for 5 years. After he got drunk, he woke up and found himself back 5 years before dating Seo Hosu. He doesn't know what happened, but Yooyu takes this opportunity to vow his revenge on Seo Hosu. But unexpectedly, Seo Hosu got caught up in Kang Yooyu first? Kang Yooyu is shaken helplessly by the fluttering of the unpolluted Seo Hosu. Will he be able to get his revenge safely?