Multiple Reincarnated Individuals

“Why is this [Summoning Card: Goblin] wearing a mask?” “Because it’s a Goblin Gangster!”

I became the secret mastermind ML in a romance fantasy novel. Not just any male lead, but the one who ends up with the villainess-possessed protagonist.

If I don’t want to live as a pregnancy machine that only lays eggs, I must evolve these crazy demonic beasts by any means necessary.

I’ve been struggling for over a decade in this world where magic is equivalent to science. And now I’ve realized that my employer is the protagonist’s enemy. …Boss, can I…