Oh My Sex Goddess

By day, a regular college guy named Kousuke plays magical girl video games in his spare time — but by night, he keeps having nightmares where he's a rampaging sex demon, and he doesn't know why. Then a goddess named Fauna shows up — not to help him, but to destroy the dormant evil inside him. Her solution, after reconsidering the whole 'just eliminate him' approach, gets complicated fast. Add two more goddess sisters with their own agendas, plus Kousuke's roommate Natsuki who's clearly hiding something, and what starts as a supernatural intervention becomes a messy tangle of competing motivations. This is a 3-episode OVA adapted from a Front Wing visual novel, so it moves quickly and leans into the absurdity of its own premise. The supernatural framing gives it a bit more structure than you'd expect from the genre — there's actually a setup worth following. The character designs are distinctive, and the tone balances comedic beats with its adult content rather than playing everything completely straight. If you've watched Jiburiru: The Devil Angel or Beat Blades Haruka and appreciated how those titles use a supernatural action framework alongside their adult content, Megachu hits a similar note. It's not trying to be something it isn't — it knows its audience — but the goddess-versus-demon premise gives it enough of a hook that the story feels like it has a reason to exist beyond just the obvious. Three episodes, light on filler, and gets into its premise without much delay.