Ken Kaneki is the protagonist of Tokyo Ghoul. He used to be a normal human living a normal student life, but due to certain events, he earns the transplant of Rize's kakuhou and became a One-Eyed Ghoul. Kaneki starts struggling with hardships one after another, between being a university freshman studying Japanese Literature at the Department of Literature of Kamii University and being a part-time waiter working at Anteiku, where he becomes known as Eyepatch.
-via Tokyo Ghoul Wiki