The Villainess Needs A Tyrant, has a similar vibe but nothing is really as good as that manwha that is finished tbh lol. MelTheWeeb
The Way to Protect the Female Lead's Older Brother is a good unfinished manwha that is closest to the vibe but Kill the Villianess is finished but has similar themes as well.
https://www.mangago.me/read-manga/a_room_without_space_side_story_1/https://www.mangago.me/read-manga/stalker_s_game/https://www.mangago.me/read-manga/may_belongs_to_me/ Star
Son I'm crine