Ero Semi: Ecchi ni Yaruki ni ABC - The Animation

As a freelance prep school teacher, Kusukuni Kyouji has built a reputation for getting struggling students through their college entrance exams. He's good at his job. The problem is that his new seminar takes a very unconventional approach to the curriculum — one that involves the students exploring human sexuality in ways that go well beyond standard academic study. What follows is a series of increasingly awkward and risqué situations as Kyouji tries to maintain some semblance of order while his students bring their own very distinct personalities and hang-ups into the mix. The university setting gives the whole thing a low-stakes, slice-of-life energy, and the tone leans comedic more than anything serious. It's adapted from a visual novel by Atelier Kaguya Bare and Bunny, and Studio Seven handles the animation, which sits comfortably in that niche of adult anime that pairs explicit content with a lighthearted framing. If you've watched Hen Semi and appreciated how it blends classroom awkwardness with adult content, this hits a similar note. Fans of Futari Ecchi who like their hentai wrapped in some actual character interaction will probably find this more engaging than the average entry in the genre. At a single OVA episode, it's a short watch — just enough to get through the setup and a handful of character moments without overstaying its welcome. Expectations calibrated to a fun, breezy adult comedy will serve you better here than going in looking for anything heavy.