Sovereign of the Three Realms (WN) - Chapter 2279: An Opportunity

Adam Anderson’s world turned upside down after an accident landed him in a society where women ruled. Waking in the hospital, he found himself inexplicably married to his estranged childhood friend, Claire, a woman weighed down by a secret.But Claire’s secret came with a price. One that gave Caterina De Luca, Boston’s ruthless Mafia queen, the perfect excuse to force her way into Adam’s life.With Caterina tightening her grip and his marriage crumbling under the weight of unspoken truths, Adam faced an impossible choice: resist, or surrender to the woman who would stop at nothing to claim him.Women out number men 3:1 in the new world.This story is set in the same world as Finding a Yandere in Reverse World. You do not need to have read that story at all to enjoy this one.Discord link to get character pictures and updates easily.

One day, Luo Jian woke up from his sleep and found himself in a locked chamber where the door and window were all sealed. A note with a few lines written on it was tacked to the wall: “Escape from this room within an hour, otherwise, you will die.”

There is a sequel called Reincarnation Night (轮回之夜) that takes place in the same universe but has different main characters

- Description from Novelupdates

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…