Boku to Misaki-sensei

What started as a vague feeling has grown into something Yuu Kazama can't ignore — actual feelings for his teacher that have built up over time and aren't going away. Misaki-sensei is warm, approachable, genuinely cares about her students, and that's exactly the issue. She's also completely off-limits in every professional and social sense imaginable. This one-episode OVA from 2017 follows what happens when Yuu decides he can't keep it to himself anymore and confesses. The setup is simple, but the tension around that decision carries the runtime. There's something genuinely uncomfortable about watching someone navigate feelings they know they probably shouldn't have — and the show leans into that awkwardness rather than glossing over it. The art does decent work conveying the emotional weight of the scenes, especially in the quieter moments between the two characters. If you've watched something like Boku no Kanojo-sensei or Sensei Kunshu and found yourself interested in the emotional dynamic of a student-teacher situation, this covers similar ground in a much more compressed format. It's a single episode, so it doesn't overstay its welcome. Fair warning though — this is a hentai OVA, so go in with accurate expectations about where the story ends up. If the student-teacher forbidden feelings setup is the kind of thing you find compelling and you're not put off by the genre, it's a short, focused watch that at least makes an attempt at building emotional context before anything else happens.