What If the Plot Goes Out of Control? Then I'll Change It

[Signed, but Not Dropped] “Elysia is dead.” Lin Shaxie: “She died before the main story even began.” “Do you want to save her?” Lin Shaxie: “Of course! What should I do?” “Choose someone from the Honkai series and descend by possessing them.” Lin Shaxie: “Can't I choose Ai-chan or the Great Sage Equal to Heaven?” “No. The System is broken.” Lin Shaxie: “Oh. Then I'll choose Houkai Gakuen 2's Kyuusyou. The only variable, the chosen one, the savior. With this power, I'll defeat the Herrscher of Corruption.”