Touka Kirishima adopts a job teaching creative writing—at a maximum security prison. It is a world she has never experienced before; one ruled by enigmatic codes of honor, ceaseless aggression and absolutely savage violence. But one of the prisoners there is unlike any of the others. [AU where Touka is human and Kaneki is a ghoul. Eventual Touken]

Were you told as a child how cruel the whole world can be? And what about those necessities? Like how to cope with tragedy and pain. Did anybody ever show you how? 19-year-old Kaneki Ken was never taught of such.

She mentally noted how he always chewed 4 times with his back teeth before swallowing gingerly. Some may consider this stalking, but Touka thought of it more as.. studying. Her childish observations weren't intentional, after all. And somehow, as weird as it may be, it made her relax. Calmed her pulse. AU where Kaneki and Touka grew up together. (TouKen)

Upon unveiling an extremely immense truth about himself, Hide's parents aren't precisely delighted with him. Gratefully, he finds consolation with Kaneki and his friends from Anteiku. AU where Hide has troubles with his family and his companions are left to collect his many shattered segments.

Kaneki Ken is raised by his elder sister, Rize. She sends him to Anteiku to spend his summer with a close relative while she's busy with her "work." A week later, the purple-haired girl appears on the news dead. Kaneki is faced with finding who exactly murdered his beloved sister, all the while trying to unravel secrets about himself. AU where Kaneki is born a one-eyed ghoul.