what happened to geto after jjk 0

According to the search results, Geto was severely injured by Yuta and Rika during their fight at Tokyo Jujutsu High in Jujutsu Kaisen 0. Gojo arrived at the scene and killed Geto, which was confirmed in the manga in Jujutsu Kaisen chapter 90. However, in the anime, which takes place a year after the movie, Geto appears as an antagonist, leading to the question of how he is still alive. It is revealed that the person in the anime is not actually Geto, but Kenjaku, an ancient sorcerer who has survived into modern-day by implanting his brain into other peoples bodies, with Geto being his latest victim. The specifics of Geto having his body taken over by someone are likely to be covered in Jujutsu Kaisen season 2.