Citadel for All: The Only Unit Angel at the Start of the Game - Chapter 456

A botched rescue mission with an unknown objective cost Zhou Yu his team members, while leading him progressively closer to the multinational biotech corporation Juli’s research core.

In order to protect his botanist younger brother Zhou Qing, Zhou Yu accepted employment under the Juli Corporation, and is dispatched to a parallel world—Nibelungen.

Nibelungen’s biological systems are completely different from the world Zhou Yu is from. To live in this place, Zhou Yu must follow three great laws:

The first law, fear is the sign of the hunted, so you must never show fear.

The second law, the more beautiful an organism is, the more dangerous they are. Do not approach them, and do not trust them.

The third law, do not be misled by the mimicry of S rank organisms. They understand your mind, and they know how to entice you. Always remember that they have no human emotions or love. All humans are no exception to them.

Finally: We wish everyone can live happily in Nibelungen.

- Description from Novelupdates

Xuan Yi was transported into the fictional world and became an elder of the Black Sword Sect! The moment he entered the world, he was at the Sea-Splitting Rank!

This story is centered around the man named Yi Ji-Hyuk, who has spent 1000 years in a Medieval Western fantasy-like world before returning back to the modern-day Earth. When he returns, he finds that his home is facing monster threats, and that humans with superpowers have appeared to protect the innocent people of Earth.

A man who races against time in the Marvel universe, hungry for pleasure. In the dark night, Nuohe stood on top of the building in a black robe, overlooking the bustling New York City. He lowered the brim of his hat and said in a low voice: They are restless, because I…

He grasped the supreme mystery, transformed into one identity after another, staged a big show, but in the end all became real

Behind him, there are many people standing, Madara with Sharingan open, Artoria holding the holy sword, Doflamingo laughing, proud Gilgamesh…

- Description from novelbuddy