A Ghoul and A Titan It all started between the fight of Kaneki and Amon, fighting along with their quinque and kagune. As the fight goes on, a black hole suddenly appear between the two, sucking them both in the dark abyss as they both drift off to a dreamless sleep. Opening their eyes, they found themselves in front of a huge giant, smiling at them intently. Where are they? Welcome to the outside of the walls. Yellow! Shimigitsu here this is one of my crossover books and hey check out its true post on wattpad