In Jujutsu Kaisen SEASON2 Episode 3 Gojo Gets Killed by The Assassin Toji Fushiguro and what a way to show that Power is not the end all be all with out Skill and Experience...Because of this Riko also passes away by the hands of Toji and now Geto must take the chance of fighting also against him whilst dealing with The Death Of His Best-Friend.