I Thought You Were All My Brothers [Quick Transmigration]

[The author is moderately particular about the pairing. The protagonists are each other's one and only. Weibo: @Jinjiang-Tangcuou] As the senior disciple of his sect, with a powerful cultivator for a friend, Chu Jiu thinks his life should be complete, except that he's been forced to bind himself to a strange, completely useless System. But after being seriously injured and falling unconscious, Chu Jiu discovers that he's been transported to all kinds of strange worlds. The only way to leave is to fulfill the target's wish and become their sworn brother! Some wolfhound: As long as Brother Chu can be mine, what does it matter if I fall into darkness? Some schemer: Be good, A-Jiu. Cry for me. Some villain: I'm the only one allowed to hurt Chu Jiu. System's conclusion: Chu Jiu, do you have a special constitution that attracts psychopaths? Chu Jiu: Uh, there are a lot of psychopaths wherever I go, but luckily Zheyu is still normal! System: Are you sure? After witnessing his dear friend Chu Jiu die tragically, Xue Zheyu has only one thought after turning back time: To hell with responsibility, to hell with the plot. He only wants Chu Jiu. But Chu Jiu seems to admire his own upright and noble nature, so... He'll just have to make a few more secret identities~ A master of changing personas, the gong can be noble and righteous, obsessive, devoted, or all of the above, with multiple personalities X a straightforward, brave, sometimes serious, sometimes goofy, beloved shou Theme: