Thread:TheDigger1/@comment-27109830-20170520180438/@comment-26220697-20170524163637

Both were originally optimistic, gentle, and kind protagonists who had an intense hatred for a species that their species was in the middle of fighting, the Ghouls and Machines respectively. During fights, they usually stayed back and tried to provide support while they're comrades, especially their stoic and more experienced love interests, took care of most of the actual combat. However, that changed when they suffered through several traumatic events, turning them into cynical and violent shells of their former selves as they desperately tried to uncover the conspiracies surrounding their lives. After this change, they became much stronger fighters, easily tearing their way through entire hordes of enemies, at the cost of gaining many psychological issues, even wishing to get themselves killed after acheiving their goals just to end all the suffering. Both frequently lose limbs during combat, only to get them back later, Kaneki through his natural regenerative abilities, and 9S through attaching severed android limbs onto his body. They also have similar designs, with white hair and black clothes, along with wearing something black that partially covers their face, Kaneki's mask and 9S's blindfold.