In another world, there exists a species like humans called Ghouls. But unlike us, the only food they can eat is Human flesh. Kaneki Ken is a college freshmen who has been hearing about Ghoul attacks on the news. Discussing this with his friend Hide meets a girl named Rize. Agreeing to a date with her, what happens on said date changes his life forever. That's just the basic description. Tell if you need more.