The Assassin Reborn in High School

I ended everything in an explosion on a remote Pacific island. Then I woke up. Sixteen years old. Overweight. Face covered in acne. Curled up in a freezing sports equipment room. In three seconds, inside this body that had been despised for sixteen years, I figured it out. I had been reborn in someone else’s body. The original owner was an easy target. Her stepmother slowly poisoned her and ruined her health. Her younger sister betrayed and framed her. Classmates locked her in the dark and drenched her with cold water. Even the teachers stepped on her. Unfortunately for them, the one living in this body now is the former leader of an assassin organization. A woman who crawled back from hell. I first settled last night’s score for the girl. Then I purged the toxins from her skin, scored full marks in physics, summoned a top lawyer to rush over and defend me to the second, and had the mayor personally show up to back me. In this life, everyone who owes me will repay it, one debt at a time.