Responses
https://www.mangago.me/read-manga/i_m_mediocre_but_i_m_loved_in_a_different_world_anthology_comics/uu/to_chapter-4/pg-1/
Sound like it was this,
Although it was the uke bullying the seme.
OMG THANK YOU SO MUCH!!!!
I couldn't remember honestly, it was so long ago that I read it.
I read a manga a long time ago and I'm pretty sure it was an isakai bl with bdsm and an alien uke. The seme had to bully the uke because he was the villain of the story and the uke secretly liked it. The seme ended up being banished because of the bullying and the uke ran to find him believing it was part of the play and eventually confronted him in a stable or something.