Tokyo Ghoul

Tokyo Ghoul is a dark fantasy Anime adaptation of Sui Ishida's manga series of the same name, produced by Studio Pierrot. A 12-episode first season was aired between July and November 2014, followed by a second season; Tokyo Ghoul √A In January 2015 until March.

Plot
The story follows Ken Kaneki, a college student who barely survives a deadly encounter with Rize Kamishiro, his date who later reveals herself to be a ghoul. Ghouls are human-like creatures that hunt and devour human flesh, and are quite common within the world of Tokyo Ghoul. After recovering for his incident with Rize, Kaneki discovers that somehow he underwent a surgery that transformed him into a half-ghoul by transferring some of Rize's organs into his body, as she died when she attacked him, and, just like them, he must consume human flesh to survive as well. With no one else to turn to, he is taken in by the ghouls who manage the coffee shop "Anteiku", who teach him to deal with his new life as a half-human/half-ghoul, including interacting with ghoul society and its conflicting factions, while striving to keep his identity secret from other humans.

Trivia

 * Although the first season follows the story of the manga series, the second season does not. It was specifically created for the anime by the manga's author, Sui Ishida.