After Season 2 of Tokyo Ghoul (which is Tokyo Ghoul √A), Kaneki Ken's story becomes more complicated due to differences between the anime and manga plots. In the anime's Season 2 ending, Kaneki fights the powerful CCG investigator Arima. During the battle, Kaneki is severely wounded, losing both eyes. Arima seemingly defeats him, and Kaneki's fate is left ambiguous as he, along with Hide and Amon, vanish after the fight. The anime does not clearly show Kaneki's death but leaves an open-ended fate for him. In the manga continuity, Kaneki is taken back to the CCG after his defeat, suffering blindness and amnesia. Arima helps him recover his sanity and gives him a new identity as Haise Sasaki, a Ghoul Investigator in the CCG. This sets the stage for the next part of the story in Tokyo Ghoul:re (Season 3 in the anime). Kaneki adopts this new identity and undergoes a series of traumatic events, losing some friends along the way, such as Hide. Thus, after Season 2, Kaneki’s story continues with him adopting a new identity, grappling with memory loss, and working as a Ghoul Investigator under the name Haise Sasaki. The Season 2 anime ending and the manga differ, with the manga providing a more detailed continuation of Kaneki’s journey beyond the ambiguous Season 2 conclusion.