Reborn for Revenge: Planning to Survive the Apocalypse

I wake up one day reborn before the apocalypse, in the body of an ordinary high school student. This time, I'm no longer the hero who once saved the world. Instead, I'm determined to slaughter every "teammate" who betrayed me in my previous life. I stay close to them, carefully planning the perfect traps.

Until one day, the real "savior" shows up early and smiles at me.

"You look exhausted from keeping up this act. Want to take a break? Let me help you destroy the world."