Responses
Isn't the beta the father's ex-wife's first child? And later on she had Jirou which is the father's son which makes the beta and alpha stepbrothers. At least that's what I understood
Jirous mom is the betas father. So they are half-brothers, they share blood.
Yes, this is what I understood. I think the author was also implying this when Jirou said Miyauchi is "like an older brother" type of teacher.
Is it me or do other people also ship the children together? Like both their boys become a pair. But then i guess because the betas the fathers half brother they would still technically be cousins.