The Simple Life of Killing Demons - Chapter 39Book 10:

While others transmigrate into the role of a villainous young lady, I, on the other hand, became the ab*sed female lead in a sadistic novel! I’m trembling with anger, but there’s no one to seek justice from! This is a story about a girl who transmigrates into a weak, pitiful, and helpless heroine. With her natural charm, gentle demeanor, and a touch of tea-loving personality, she conquers the hearts of the villainous female leads, ultimately achieving a sweet and satisfying counterattack.

Kusumi Chiharu gets a message one day that he has been selected as a Monster Tamer, and he is prompted to select his first partner. He thinks little of the message until he receives a giant package the following day. He assumes it’s the porn books he ordered, but the huge box ends up containing the unconscious body of a near-naked girl! She’s a ghoul named Zonmi, who intends to fight beside him as his partner.

However, it turns out that other hot girls at his mostly-male high school are also magical entities, and Zonmi may not be the only one who wants to fight by his side!

Death started her on the road of book transmigration. Transmigrating into different supporting females, snatching opportunities and men from the different worlds’ female leads’ hands. Hey, Female Lead, you can have the male lead, the supporting male is the one I want. Walking on this endless road, Xia Qiu did not expect that during these countless book transmigrations, the one she saved has always been the same person. He’s from outer space, trapped in the stream of time, with only a robot for company. Meeting her, falling for her…… However the sweetness isn’t easy. With a Boss as her man, Xia Qiu has a lot of worries. The Boss wants to bring me along as he destroys the earth, what should I do? #waiting online, quite urgent#

- Description from Novelupdates

In 2040, The Earth was bathed in powerful radiation when a star went supernova, this radiation granted 50% of humans superhuman abilities but also created a nightmare for them as animals, insects, and carnivorous plants were mutated and became overpowered with intelligence, human started teetering on the brink of survival, a boy with no powers and no father, with a mother in a coma, seems destined for obscurity, but one night changed his life, with a new found hope to cure his mum from the everlasting sleep—Gene Elixir— he went on on a journey that would reshape his destiny...~Voracious Sovereign... Gene Devourer...Pray you won't be devoured by this power you wield which hunger is insatiable~~You call yourself an opportunist... But... you aren't free. A hungry man is not a free man...~