The apocalypse descended upon Earth in 2060. Zombies, aliens, and mutated plants and animals were no longer just figments of people's imaginations. Even more terrifying were the alien insectoids lurking in the darkness.
An Yu was betrayed and fell just before the apocalypse was about to end. She hated their greed, shamelessness, and ingratitude.
After being reborn, An Yu swore she would no longer let compassion run rampant or sacrifice herself for others. With her resolve firm, she would clear away every obstacle in the way of her survival and progress!
PS: The protagonist is strong-willed and perseveres through every setback. (Look here: I'm sticking to no romance, no matter what.)
Theme: Even in the apocalypse, you have to live well