MOT

MOT is a  based on the comic books of the same name by Alfonso Azpiri and Moreno Nacho.

A monster named MOT (short for Monstrous Organicus Telluricus) sneaks into the bedroom of a boy named Leo at night. From this point, Leo befriends MOT, and the two go on crazy adventures. At the same time, however, Leo has to hide MOT's existence from other people. Meanwhile, his neighbor Zelda is spying on them, wanting to know about MOT's existence. In the end, Leo is often blamed for whatever trouble MOT has caused.