Monster is an eccentric and mysterious individual who craves the flesh and meat of humans as well as demons. He likes to sing about how he wants to kill and eat people, including children, in gruesome detail. He is willing to trick others to get what he wants. Monster has been described as being "just insane," and it has been hinted that he has not found inner peace. Despite this, however, he does have other feelings, and he can even feel sad and have suicidal thoughts. Monster's exact nature is unknown, as he has been described as being something "worse" than a demon and, by extension, a specter. It was stated that he "wasn't born." It is also known that Monster can alter someone's perception.
