Okami Wa Nemuranai - Chapter 50.12

Meet Sora and Shiro, a brother and sister who are loser shut-ins by normal standards. But these siblings don’t play by the rules of the “crappy game” that is average society. In the world of gaming, this genius pair reigns supreme, their invincible avatar so famous that it’s the stuff of urban legend. So when a young boy calling himself God summons the siblings to a fantastic alternate world where war is forbidden and all conflicts–even those involving national borders–are decided by the outcome of games, Sora and Shiro have pretty much hit the jackpot. But they soon learn that in this world, humanity, cornered and outnumbered by other species, survives within the confines of one city. Will Sora and Shiro, two failures at life, turn out to be the saviors of mankind? Let the games begin…

I was a genius in the Earthen Plane.

Lianna Velcross, a girl who came from nothing, with no family, no worth to her name, and no place in the world.Enverna Alteri, a young woman carrying the weight of an entire house's expectations on her shoulders.One wants nothing more than to have a purpose, the other has one but cannot possibly fulfill it.These two women who would never have crossed paths normally end up with their fates being intertwined when a Constellation decides to empower them both, on one condition...That these strangers, from different nations with different beliefs, get married.And, both of them accept.---A GL story about a marriage arranged by a higher power!

She was originally the king of the dark mercenary world, killing, plundering, and looking down on the world; once reborn, she became a powerful family that shocked the continent, the “Ninth Young Master of Waste” of the Beiting family;

From then on, the elegance of the world, shake hands;

Belonging to ancient monsters, possessing a magical space, practicing heaven-defying skills, killing the sky, killing the gods, and doing whatever they want;

Cool and handsome, domineering and arrogant, leading the world to compete;

In this article, the male and female protagonists are double C, male strong + female strong, and the ending is one-on-one;

- Description from novelbuddy