Incha Couple ga You Gal-tachi to Sex Training Suru Hanashi

On campus, everyone knows them as that quiet otaku couple, the kind who are perfectly happy in their own little bubble, probably talking about manga between classes. Their relationship is comfortable but, let's say, not exactly progressing on the physical side. That changes when three gal classmates, Sumire, Momo, and Sayu, decide to take a very hands-on interest in helping the couple level up their intimacy. What starts as awkward encounters quickly spirals into something way more intense than either of them expected. This is a 2-episode OVA from T-Rex (2024), adapted from a manga, and it leans hard into the contrast between the reserved couple and the bold, uninhibited gals. The character designs really sell that gap, you've got the plain, understated otaku look next to bright, fashionable gal energy, and the dynamic between them drives most of the appeal. There's a comedic edge to how out of their depth Akiho and Suzune are, even as things escalate. If you've watched something like Boku no Kanojo ga Majime Sugiru Shojo Bitch na Ken and wanted it to actually go there, this is basically that premise without the brakes. Fans of Yubisaki kara Honki no Netsujou or 25-sai no Joshikousei will recognize the tone: lighthearted setup, risqué payoff, social dynamics doing the heavy lifting. It's short, it knows exactly what it is, and it doesn't waste time getting there.