Hello Lis and welcome to the game! I haven't seen Humans yet but I'm still excited over Mia coming into the game. More feels is always a plus for me!
But yes, I play Ciel Phantomhive from Black Butler. He's kind of an entitled teenager so I'm not sure how Mia will react to him, but I'll have fun tossing him her way anyways! I hope you have fun in the game!