Kashiwada's face never moves, but Oota's entire body is screaming that he's figured something out she hasn't admitted to herself. The show understands that love between opposites isn't about one person changing the other, it's about finding someone whose chaos makes your stillness feel less lonely. Every episode is just him throwing himself at her impassivity and her pretending it doesn't register, except it does, in ways that register.
Kashiwada has perfected the art of the blank stare. Nothing rattles her, nothing moves her face, nothing gets a reaction. She glides through high school untouched by the chaos around her. Then there's Oota, who exists at maximum volume at all times. His face broadcasts every thought, every feeling, every ridiculous idea bouncing through his head the second it arrives. He's decided his personal mission is to make Kashiwada crack, to pull some kind of expression from that impassive mask. Spoiler: she's not budging. But something's happening underneath anyway. His over-the-top schemes don't land the way he wants them to, yet Kashiwada keeps showing up. She stays, she listens, she engages with his nonsense in her own deadpan way. What starts as one-sided comedy slowly shifts into something neither of them expected. Two people speaking completely different emotional languages somehow find themselves understanding each other anyway. This is a love story written in silence and volume, in blank stares and wide grins.