Carol invites her first two friends Tomo and Misuzu to her house—or should I say sprawling compound—and they meet her mother, who totally explains why the way she is. For one thing, she’s a hugger. For another, she’s actually sharper and more perceptive than she looks, as she sees right through Misuzu pretending to be a “bad girl” who is only friends with Carol “for the money.”
In preparation for a math exam, Misuzu deigns to serve as Tomo and Carol’s tutor in a study group, during which Tomo makes clear she wants to follow Misuzu to college since they’re best friend.. It’s here where Tomo and Misuzu learn that Carol is actually a damn math savant! She even ranks #1 over Misuzu’s #2! Tomo gets #70, which is an all-time best.
When Jun invites Tomo over to play a new video game he got, Tomo agrees without thinking about the ramifications of spending the night at Jun’s. She wants to tell him she can’t go, but Misuzu and Carol are united to their insistence that she can’t do that. Tomo only has to go next door to Jun’s, and they get through a curry dinner without any incident.
But during and after Tomo showers, things are quiet and a little awkward. Jun re-breaks the ice by suggesting they play video games, but after Tomo loses and teases Jun for being a “former gamer boy”, they roughhouse like they always did…and end up in a compromising position.
It’s clear in several moments that this is as weird and exciting for Jun as it is for Tomo, as he has to steel himself by slapping his cheeks and seems to take great joy getting smacked by Tomo’s controller. The two are adorable in their complete inability to stay up past 10 PM. As Tomo takes Jun’s bed and Jun takes the futon on the floor, they agree that they had fun.
When Jun asks if they’ll always be able to be “like this”, Tomo is poised to reaffirm her feelings for him, only for him to nod of before she can. She then notices his face and its details for the first time when he’s asleep and motionless. When she starts holding his nose for fun, he puts her in a lock in his sleep, so they’re essentially cuddling all night.
The next morning, Jun wakes up first, sees Tomo beside him, and does a backflip out of bed and straight into his desk, waking her. They say their goodbyes, and presumably reunite at the dojo later that day. The next day at school, they’re awkward, but still together, and not at all bothered by that fact. Misuzu and Carol watch the couple with great satisfaction.
With Tomo finally sort of noticing that Jun may be feeling the same things she’s feeling, only he’s doing a better job of hiding it, our athletic couple is gradually growing a little closer together. Jun’s sticking point seems to be a general worry that they might lose the good thing they have going now, but that is a common and not unreasonable worry.
The bottom line is, becoming a couple could well be a much better thing. It will take a leap of faith and a willingness to put themselves out there and risk getting hurt in order to evolve beyond platonic childhood chumminess.