When Worlds Collide, What Happened to the Everyday Life We Were Promised?

After transmigrating a second time, Han Yun returned to his original world. He had hoped to live a happy life, but suddenly discovered that this world was not as simple as it seemed.

For example:

Eri: So, should I use this RPG, or just drive a tank?

Han Yun: No, I think you'd have trouble even using a rifle. Better stay away from that high-end stuff.

Kaguya Shinomiya: Come on, down this bottle of vodka, and we'll charge straight into the monsters' lair! Ura!

Han Yun: You forgot your PPSh.

But Han Yun also discovered that this world was far more complicated than it seemed. Beyond the mysterious black fog lay an entirely new world.

For example...

A certain doctor who often pulls all-nighters, an admiral surrounded by girls... and so on.

This novel and its characters are entirely fictional. Any resemblance to real people or events is purely coincidental. Do not imitate.