I Have A City In An Alternate World - Chapter 4294 - : The erupting calamity (1)

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

Blue Star has entered the extraordinary era, everything is evolving, and monsters are rampant.

Humans awaken their star souls in evolution to fight against raging monsters.

Zhou Xuan, who was doing odd jobs in the Demon Town Tower, accidentally awakened to an unscientific sign-in system.

Sign in on the ancient desolate beast and gain the power of the wild. Sign in on the weed spirit, and the star soul evolves into the nine-leaf sword grass.

The thousand-year black turtle, the ten thousand-year sea king, the immortal true phoenix, and the sky-swallowing dragon have all become the targets of his registration.

There are countless monsters in the Demon Suppressing Tower, Zhou Xuan signed in silently, and if he was not careful, he would be invincible.

Journey through the combined world of the Special Forces series and become the acknowledged bad soldier of the Iron Fist?

Don’t panic! The “Strongest Individual Soldier System” is here to help. Every time you upgrade a level, not only will your body be strengthened, but you can also acquire super skills. At the beginning, you will activate the S-level shooting skills, which will amaze the audience and overwhelm everyone! Thus, a vanguard that made the heads of state tremble was born…

He Chenguang: “Did you practice martial arts from the womb?”

High school team: “He is the scariest individual soldier I have ever seen, bar none!”

Lei Zhan: “It’s unlucky. In his hands, I’m like a three-year-old child. I can’t beat it! I can’t beat it!”

He Zhijun: “Xiao Lin, the future of Langya is in your hands, I will retire early!”

- Description from novelbuddy

The male student, Fukai Nagamasa, ignores his studies for college entrance exams in favor of following the path to chuunibyou. As he fainted during night cramming session before the exams, he realized that he was transported to a parallel world as a feudal lord in the Sengoku Era. Not to mention that suddenly, he was marrying the sixth Demon King, Oda Nobunaga’s little sister, the one who was purported to be an unrivaled beauty?