Tokyo Ghoul, Vol. 1 by Sui Ishida

After a near-fatal date leaves a shy college student with transplanted organs from a deadly predator, he awakens as a half-ghoul, torn between human life and a monstrous hunger. Guided by the staff of a secretive coffee shop, he learns the rules of an underground society while trying to protect his best friend, navigating turf conflicts, ruthless investigators, and the moral cost of survival as his identity begins to fracture.

Purchase from Bookshop.org