金木研 (Kaneki Ken) is the main protagonist of the popular manga and anime series 东京喰种 (Tokyo Ghoul), created by 石田スイ (Sui Ishida). He is a college student who becomes a half-ghoul after a near-fatal encounter with a ghoul named 莉莉 (Rize). This transformation forces him to navigate a world where he must balance his human side with his new ghoul instincts. As a half-ghoul, Kaneki possesses enhanced strength and regenerative abilities, but he also struggles with his identity and the moral dilemmas of consuming human flesh. Throughout the series, he evolves from a timid individual into a more complex character, grappling with themes of survival, acceptance, and the nature of humanity.