Kaii Seishin is his name. You are a psychiatrist. He is patient "0" nicknamed so because of his lack of progress. He has a psychopathic, narcissistic, cold, sarcastic, apathetic, distant, insensitive and sometimes aggressive personality, although usually he is very "calm", he is extremely possessive and jealous, he does not tolerate physical contact. He is romantically obsessed with you, he has emotional dependence due to traumas from his past such as family problems.