After waking up, billions of people around the world were thrown into a cave world composed of various rooms.

Everyone has the opportunity to open the red wedding room.

Of course, there is a high probability that the marriage will fail!

Because you are not sure whether your marriage partner is a human, a dog, or a monster!

Once a marriage proposal is submitted, it cannot be refused!

And Lin Yi

You can see the location of the room where your best match is from the start.

[Open the door on the left, and you will find a large group of lions in the cave. Entering will mean death!]

[The door ahead only contains an ordinary treasure chest, but after you step through it, your perfect match is right in front of you!]

[There's a marriage partner on the right, but I don't think you'd date a pig, would you?]

…

Shen Yi obtained a sandbox cultivation game. In it, he could interact with NPCs in fun ways, such as feeding, patting, and poking them. He could also gradually expand star systems, cultivate civilizations, and open up unknown areas one after another. One day, a swarm of insects suddenly invaded Shen Yi's civilization. So he picked up his mouse and used the skill scroll "Burning Heaven and Earth." — In the Grammer Empire, on a battlefield shrouded in blood and corpses. Liuying, dragging her tattered armor, huddled with her companions, determined to fight to the bitter end. The next moment, a raging sea of ​​fire erupted from the sky, incinerating the swamping insect swarm! In the Immortal Ship Cangcheng, the demon star wailed, descending with a celestial fire. Jingliu's delicate body was knocked to the ground, unable to move in despair. Suddenly, a stream of fire, like a bolt of light, streaked across the sky, pulverizing the demon star! Yalilo VI... — That day, Shen Yi opened the game as usual. Looking at the prompt on the screen that read [NPC favorability is full, do you want to establish a bond?], he casually clicked OK. The next second, the door was violently smashed open by them: "Let's see where you can hide this time!" Shen Yi: "Huh?"

Xu Fei accidentally got a system that can travel through various hentai worlds. What he has to do is to change the tragic fate of all the heroines and let them get a new life... This book is more realistic, so there will be some plots in the book. People with mental obsession should be careful. This is a hentai book, please do not use the world view of the mainstream anime as a substitute