Yu-Gi-Oh!: I'm Tang Sanzang, and I Slaughter Them All

This novel is about a student who spends all day immersed in online games and fails the college entrance exam. After spending several days and nights at an internet cafe, frantically grinding levels in the Journey to the West game, he reaches level 100 and is about to head home to rest when he suddenly passes out. He accidentally enters the game's System, and he won't be able to leave until he reaches level 100. He picks a skill and transmigrates into the body of Tang Sanzang in Journey to the West. From there, he goes on a monster-slaying, level-grinding spree and begins a pilgrimage marked by the merciless slaughter of demons.