Hokenshitsu de Aimashou

Masato, a high school student, has turned skipping class into something of an art form, and his method of choice is the school infirmary. It's quiet, nobody bothers him, and the school nurse, Ruko Hoshino, is warm and easy to talk to. What starts as a convenient excuse to dodge lectures slowly turns into something more genuine as the two keep finding reasons to be in the same room together. This is a 1999 OVA, so manage your expectations on runtime — it's a single episode that moves fast and leans heavily into its adult content. The school setting and the nurse-student dynamic will feel familiar if you've seen Please Teacher!, though this one skips the slow burn and gets to the point considerably faster. It's in the same general neighborhood as Aneki... My Sweet Elder Sister The Animation if that's a reference point that means anything to you. The appeal here is pretty straightforward: a soft-spoken romance framing device wrapped around explicit content, with just enough character warmth between Masato and Ruko to make it feel like something more than a pure fantasy scenario. The infirmary backdrop gives it a cozy, contained atmosphere. If you're into short-form adult anime with a gentle romantic coating rather than pure shock value, this scratches that itch without overstaying its welcome.