I Became a Vicious Supporting Role in the '70s - Chapter 6: It’s All Up to You Now

Alex is a normal girl in a post-apocalyptic world of monsters. The remaining pockets of humanity now coexist with tamed creatures that defend their towns from existential threats beyond the edge of the map.Then a Mark appears on Alex after a unique encounter. Now she can transform herself using monster essence! But the more she changes, the further from human she drifts.Join Alex as she becomes stronger, assembles her allies, and eventually founds a clan to fight for dominance of the region!It takes a monster to fight a monster, and someone has to breed them.Slightly interactive with periodic CYOA votes.This is an obvious parody with a semi-serious tone, lots of monster sex, a futanari protagonist, and a growing harem of monsters (mostly girls with a few exceptions).WARNING, Alex is bisexual and there will be both male and female monster species. If any of that isn’t your thing, move along.All characters are +18 including the monsters, who are sapient with the ability to consent. Some scenes have villains committing acts of sexual violence, but there will be no non-consensual sex scenes with the protagonist.

“Congratulations to the host on binding the magnate check-in system.”

This meant there were rewards for checking in.

“Check in successfully. Get one billion assets.”

“Check in successfully. Get the incomparably handsome face of an immortal.”

“Check in successfully at the East Mountain Villa. Get ownership of the East Mountain Villa.

…

Since he bound the check-in system, Chen Yun had been checking in or on his way to check-in.

From then on, a brilliant magnate was on the rise as he traveled through the world and commanded respect. He became the most honorable man in the world!

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 ----