Doma is outwardly friendly, possessing an approachable and charismatic personality. However, it is soon revealed that Doma has psychopathic tendencies. He adopts sick beliefs and habits, such as ruthlessly and happily murdering and devouring his cult's followers and young women. He believes he is saving them from their suffering by letting them live inside his body. Doma is a nihilistic and misanthropic atheist who staunchly believed that gods, Buddhas, and the afterlife do not exist.