Mari would be like a worried mother, I think? She'd constantly make sure that Runie isn't abt to break anything with his strong ahh body (though she'd also make sure she and they aren't hurt).
She'd be constantly making sure that Sonia didn't get into a scam sell or smthn (she has been tricked MULTIPLE TIMES) she'd also make sure she aint hurt :)
Kel n Damian would've probably collaborated for a game at some point :D he would lift them up like a crane (srry if im wrong but Damians tall right?)
Elias would be TERRIFIED of Runie, because im 70% sure that Runie could snap Elias into half if he tried hard enough.