After the blood moon ball, things got a little crazy. Tom was upset that his heart was broken by Star and that friend of hers. He got that the human was trying to protect Star from him. He was, after all, the prince of the underworld. He decided one day to tell Star he'll try to move on from her and search for someone else, but instead bumped into Marco. I wonder what will happen when Marco sees Tom's true self, and not the monster everyone puts him out to be.
4 parts