The art is so familiar like it's on the back of my head. I'm pretty sure I read a romance manhwa with this art style before because the MC reminds me of the MC from that romance manhwa.
Yeah it was this
https://www.mangago.me/read-manga/cohabitation_with_the_fiancee/
Tho the ending was rushed










We're finally getting the lore that we needed, it kinda started being confusing. Good thing we can now get to see their past glory.