Len is a normal city boy. He had a interest in art, and worked as a assistant for a big company. One day, when he takes a day off work, he gets pulled into a bundle with his old friends. Who summon satan, after Len gets drunk. Well little note, he hits big in art after developing ink powers. Another small note, then government finds out, and wants him to join them. But he declines, and now they will do anything to capture him. So Len and his friends have to prove that Len isn't satan, and that Len isn't a threat.
Tom gets home to find a demon sitting in the middle of his living room, crying incoherently while petting his cat. It's only after a long and very confusing assessment as well as noticing the bandages around their jaw that he realizes the demon just had some of their teeth removed and has somehow transported itself to your home in their very loopy state. Somehow he ends up replacing his cat and is now being pet by the demon. In an effort to escape Tom sings a lullaby, unfortunately, this backfires and now the demon wants to keep Tom as a pet.