Some background on Sorey: He is a total history/archaeology nerd. Loves to read. Wasn't raised around humans so his socialization skills are some times lacking. But he is a good boy with a good heart that can't just not help people out if he can.

I think he'd work with Shoto just fine.

Corrin is... Half dragon. Also somewhat sheltered. Stubborn but fairly sweet. I would be 100% okay with Dazai being thrown her way, yes.