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 personal communications. The son of an Inazuman father and Mondstadter mother, Thoma shares the traits seen in both nations' peoples; his father placed a great emphasis on loyalty, and being raised in Mondstadt meant that he could easily mingle with most people.