Responses
Concentration of malice (has smut tho!)
https://www.mangago.zone/read-manga/akuyaku_reij_tachi_wa_yuruganai/
This is pretty new, but I think it has the potential.
I'm very picky with isekai/villainess stories but I liked The One Within the Villainess very much. Do you know any stories that is closely similar to this one? Thank you very much.