Even a Scheming Girl Wants to Save the World

A heads-up: Strong female lead, no romance. If the heroine can kill, she won’t waste time talking. Before the apocalypse, she wiped out her scumbag father’s whole family. Afterward, she gave up trying to help people and set out to kill every injustice under the sun... The actual synopsis Nuclear wastewater from an island nation is dumped into the sea. Marine creatures mutated by radioactive contamination start attacking people, and those bitten turn into zombies. The zombie virus spreads rapidly, sweeping across the world. Some of the people bitten develop superpowers. They step up to help ordinary people fight off monstrous fish and zombies, protecting the safe zones. Before the survivors can even celebrate, superpowered people under the control of KJ Biotech slaughter them. Worse still, KJ Biotech releases videos edited to remove key footage, framing the superpowered survivors. Jiang Sui awakens her own superpower amid all this...