beta
Sensei isn’t a love interest, unless it was a translation error they cut our precious MC off as he was saying “this is-“ so as not to reveal his identify. So he’s probably his brother or cousin or neighbor or something really overprotective, or potentially the lover of someone close to him. If I was close to MC and saw the way he was being treated by ML I can’t say I wouldn’t step in and whip out the old butter sock on the ML either.