Rebirth Of The Mighty Overlord. - Chapter 13: Lost and gains.

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

The clock struck midnight when Ruelle heard the echo of footsteps. She tensed, the fine hairs on the back of her neck standing on end in the cool night air.“You shouldn't be here,” Ruelle whispered, her voice a breathless murmur. The silhouette finally came to stand under the moonlight, his dark red eyes watching her and his inky black hair ruffling.“Shouldn't I?” His voice was a dark caress, and she stood there captivated by the danger he exuded like perfume.“I haven’t seen you for the last two days,” his tone low. His hand reached out, fingers brushing against the silk of her nightgown, tracing the trembling outline of her collarbone. “Tell me, were you avoiding me, or perhaps... entertaining other offers?”Ruelle’s heart raced, her breaths shallow. She declared, “I don't belong to anyone.”“A bold claim,“ he murmured, his breath a tantalising chill against her skin as he leaned in. ”Yet here you are, pulse racing, your body tensed as if in anticipation of my touch.”His fingers gripped her chin, tilting her face towards his. The moonlight caught his eyes, revealing a glint of predatory intent. “Or must I remind you whose touch you truly crave?”

Crossing the prehistoric times, Chen Changsheng bowed to Tongtianmen and became the most sturdy senior brother of the Intercepting Sect, awakening the reading system.

Read [Holy King], extract the god statue, and automatically upgrade it to the immortal way.

Read [Perfect], extract the self-indulgence method of his transformation, and automatically upgrade it to chaos and self-inflicted law.

Read [Star Change], extract the method of stars, and automatically upgrade Hongmeng Star Change.

…

Just like that, relying on reading from the heavens, Chen Changsheng became the first person to communicate with each other in the past and present.

- Description from novelbuddy

Qu Mao, who hadn’t had time to cut his sister out of class and experience the degenerate university life, woke up and found that he had come to a strange and cruel new world, and it seemed that young people from all over the world came to this world together…

The world channel was full of shouts and curses. Except for a tattered lord’s order, everyone didn’t even have a whiteboard novice weapon at the beginning…

But Qu Mao is not worried or in a hurry, because he has a cheating system with him, and he just wants to save some cheating points. With cheating points, he has everything.

Who would want to cheat if they could win by cheating?

- Description from novelbuddy