Fire Mage - Chapter 650 Three Passages

This is a story about the protagonist getting the system, going crazy in the biochemical apocalypse, producing aircraft and tanks, destroying zombies, saving good people and killing bad people.

- Description from novelbuddy

The Synders and Thornes had always been the closest of friends. So when Kyra Thorne and James Synders both lost their parents in an accident, twenty-year-old James swore to protect ten-year-old Kyra as though he were her uncle.Twelve years later, Kyra had not only blossomed into a beautiful woman, but she also could no longer ignore the feelings she’d developed for James at nineteen. After three years of struggling to suppress them, she was finally ready to confess.However, what Kyra didn’t know was that James had long discovered her feelings—and had devised the cruelest way to reject her.But, what happened when James unintentionally crossed a line?One thing was certain: Kyra Thorne always got even, even if it meant destroying them both.

Being given a chance and reincarnated is nice and all, yet why do I have to become that male friend who just watches the protagonist flirting with his harem?---World: Kaguya-sama: Love Is War - Hyouka ----

Sold by her own grandmother to become a shared wife to the poverty-stricken Ye brothers for twenty taels of silver, Liu Duo, unwilling to succumb to her fate, escaped in the night. She slipped and fell and died an inexplicable death.