Usamimi Bouken-tan: Sexual Harassment Shinagara Sekai wo Sukue

Without warning, he's yanked out of his ordinary life and dumped into a fantasy realm on the verge of collapse. Waiting for him is Unasaka, a rabbit-eared spirit who wastes no time explaining the situation: the world is dying, she needs his help, and together they're going to fix it. That's the setup, and it leans fully into classic isekai territory before the adult content takes over. If you've seen something like Kuroinu or Taimanin Asagi and enjoyed that blend of fantasy stakes mixed with explicit scenes, this one runs in the same lane. The four-episode OVA format keeps things focused — no filler, no padding, just the adventure and the content it's actually here to deliver. Unasaka's character design is a standout; the rabbit ears give her a distinct look that separates her from the usual spirit or guide archetypes you see in this genre. Studio Majin handled the production, and their work here holds up visually. If you're coming from something like Shimoneta and want something with a cleaner fantasy framing around the adult material, this scratches that itch. It's not reinventing anything, but it does what it sets out to do with a coherent enough premise to keep the adventure side from feeling like pure window dressing. Four episodes, rabbit-eared spirit, world-ending stakes — you know fairly quickly whether this is for you.