Fourteen is a kind of "psychopathic maniac with a smile on their face", if based on the fact that he happily ran to eat people's skin. He seems to be naive and excitable, and likely not understanding that "Eating people's skin" is bad.

He also likes to play practical pranks on others, as seen in Thanks for 2,000,000 Subscribers!. For example, in the aforementioned video, he put gum on the road along where Five is walking, wrote insults on Eight and Nine's cards, and tricked Six into painting a 