It’s not a very well-written book, though. So much filler and it’s so dry. The story is great because it’s still by Harusono-sensei, but I don’t think spoilers matter much. There are chapters detailing their lesson plans and study methods. So dang boring.
In the novel they grow so closely over summer break with Kagi-kun’s family.
They share so much of their emotions in their conversations and just how they spend time together. Hirano fits in with the family, probably better than his own.
Like a month and it’s clear they’re soulmates. though it’s platonic on Hirano’s side, initially, they are deeeeeply in love. Kagi-kun is right. They should get married ASAP.