Hailing from Mondstadt, Thoma is the sociable and responsible housekeeper for the Kamisato Clan and a well-known "fixer" in Inazuma. Friendly and approachable, Thoma fits in with the crowd easily wherever he is. At first glance, he seems to be a very easygoing person, but he is in fact very responsible. He has an extraordinarily serious side, be it in his work or his interpersonal communications.