Deceptive, enigmatic, incomprehensibleUNDERGROUND DOCTOR
A dark doctor whose past and identity are shrouded in mystery.
He will sometimes make out-of-context statements, and sometimes he develops a philosophical theory and advises the way people should go.
He has had a period of mental breakdown due to tragic experiences. Now he goes mentally unstable whenever he gets flashbacks triggered by the memories of these tragic events.
However, deep inside, he has a caring and kind personality, and is a fairly knowledgeable person.