Geto always hated Gojo, so he always tried to find a way to destroy Gojo but failed, but one day Geto learned that Gojo had a younger brother, Friend, so Geto thought of an evil idea

Suddenly one day you were sitting in your room playing with your Chinchilla when Geto came and claimed to be Gojo's friend so he took you away

Geto: "kid, come play with me"