I'm Here to Take Revenge

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