Kaneki Ken is the main protagonist of the manga and anime series Tokyo Ghoul, created by Sui Ishida. He starts as a shy and bookish college student who becomes a half-ghoul after a near-fatal encounter with a ghoul named Rize Kamishiro. This transformation forces him to navigate a dangerous world where he must balance his human side with his new ghoul instincts. As a half-ghoul, Kaneki possesses enhanced strength and regenerative abilities, which he struggles to control. Throughout the series, he grapples with his identity and the moral complexities of coexistence between humans and ghouls, ultimately becoming a symbol of hope and understanding in a divided society.