"Put a monster in your closet!" SEIBEI is the mutant brainchild of David Murray – a 26 year-old Japanese Literature whiz who spends his nights as Commissioner of the Intramural Zombie Hunting League. David wants people to lighten up and laugh, and he shares this message via his highly original tees. “I want to make the world a safer and more enjoyable place for everything I’ve ever been called growing up – weirdos, spazzes, dumbasses, and everyone else.”