Tsundere Inran Shoujo Sukumi

What starts as a routine campus visit during summer break turns into something he never expected when he accidentally catches his classmate Sukumi in a very private moment in the girls' locker room. Instead of being embarrassed, she flips the script entirely — threatening to make his life difficult unless he shows up every day to meet her. What starts as awkward blackmail territory gradually becomes something more complicated between them, with their encounters escalating to the school pool and beyond. That tension of 'who actually has the power here' is the whole engine of the story. Sukumi is exactly the tsundere type — sharp-tongued, controlling on the surface, but there's clearly more going on underneath. The two-episode OVA format keeps things focused, and Studio 9 Maiami leans into expressive character animation to sell the shifting dynamic between them. The soundtrack does quiet work too, building tension where the visuals leave off. If you've ever watched something like Maid Sama or Nisekoi and thought the will-they-won't-they needed to drop the brakes entirely, this is built for that specific curiosity. Fans of Toradora who wanted Taiga's sharp personality in a completely different context might find Sukumi scratches a similar itch. It's a short, straightforward adult OVA adapted from a visual novel, so go in knowing exactly what it is — a contained summer-break story with two characters, one uncomfortable secret, and a power dynamic that keeps shifting the whole time.