Iinchou wa Saimin Appli wo Shinjiteru.

Satsuki is the class representative — studious, composed, and completely out of Kodera's league — which hasn't stopped him from developing a crush on her. His friends, in their infinite wisdom, hand him a hypnosis app and dare him to use it to confess. It almost works, right up until the hypnosis drops at the worst possible moment. Here's where it gets interesting: Satsuki saw the whole thing, and rather than being angry, she pulls Kodera into the gym storage room after school and tries to flip the script — using the app on him instead. What she doesn't know is that he's no longer under it. He just plays along anyway. That setup — two people with mutual feelings, each thinking they have the upper hand, neither fully honest about what they actually want — gives this single-episode OVA from T-Rex a little more narrative texture than you might expect from the genre. It's based on a manga, and the character work shows. If you've watched something like Boku wa Chiisana Succubus no Shimobe or Kitsune Musume no Ecchi na Oyado and appreciated when these productions bother to build a bit of tension before getting to the point, this one follows that same approach. The hypnosis angle is more of a framing device than a power fantasy — it's really about two people using a flimsy excuse to finally stop pretending. One episode, contained story, does what it sets out to do without overstaying its welcome.