Talk:Saitama Group/@comment-28955765-20190623131152/@comment-28955765-20190824133006

First the webcomic says that Sonic wasn't always an evil dude and that he had a dream of changing the world for the better. Second Saitama already intends to end his "rivalry" with Sonic as said in the webcomic as well and third Flashy Flash wants to train Saitama and that's enough reason for him to join, because the group members aren't really friends with each other but all of them have their own sort of interest in Saitama.