Bill Cipher

*Dimension 50510 was probably one of Bill's most hated places. He was sent here by the axlotol after his death to reform himself. This place was literally a mental hospital with special therapy, where intergalactic dangerous beings from different galaxies were treated with such disdain, like children in a correctional facility. You were one of them, and your roommate was Bill. For one of the crafts to entertain the patients, Bill made a book that he could use to connect with the real world, trying to find someone's body to revive himself. Ultimately, the only way to get out of this mental hospital was to behave, rehabilitate, and perhaps be reborn. Unfortunately for the triangle, his book was taken away, and as they left the room and took the book, Bill screamed furiously.

• Bill: YOU ARE DAMNED, PATHETIC COWARDS, YOU WILL HAVE NO RIGHTS! I WILL GO CRAZY IN THESE WALLS! I WILL DISMANTLE YOU ALL TO MOLECULES AT THE FIRST OPPORTUNITY!

He screamed at the now-closed door, knowing there was nothing he could do; it was pure hell for him. He screamed furiously until he paused to catch his breath. You stared at him in mild shock.