This is what happens when an OVA stops pretending the ecchi is a side dish. Two episodes of summer break where the flirtation doesn't need plot armor because there's barely any plot to begin with. Chizuru finally gets what she's been chasing since episode one, and the show doesn't waste energy on obstacles or consequences. The animation bump from the TV series makes every embarrassed face land harder. If you watched the original series waiting for the tension to break, this is exactly what you were actually there for.
Summer vacation arrives, and Kota finds himself caught in the usual chaos with Chizuru, a fox spirit who's made it her mission to seduce him at every opportunity. While Kota desperately tries to maintain some dignity, Chizuru strips away his composure with relentless flirtation. Their dynamic pulls in the entire friend group: Nozomu constantly interrupts at the worst moments, Tayura pursues the uninterested Akane with hopeless determination, and everyone else watches the romantic turmoil unfold. This is pure comfort viewing for the slice-of-life crowd. Nothing earth-shattering happens. Instead, the OVA settles into the rhythm of summer break, letting these characters exist in their awkward, comedic space where nothing really changes but somehow everything feels right. Chizuru's aggressive pursuit of Kota drives most of the humor, balanced against his flustered resistance. The ecchi elements serve the jokes rather than overshadow them. If you want low-stakes fun with characters who've already established their chemistry and dynamics, this delivers exactly that: lazy summer days filled with embarrassment, friendship, and the kind of romance that never quite reaches resolution.