One Piece: Dream of Immortality - Chapter 514: Treachery

In a modern world where cultivators need a place to cultivate or vent their boredom, there are private businesses that set up instance dungeons with the aid of technology and cultivation magic to enable cultivators to train and commoners to experience the life of cultivation. They are called dungeon suppliers.
Xie Jin's one and only dream was to be a dungeon supplier and when his only relative passed away, the relative's inheritance gave him a plot of land and surprisingly, a 'System' Module which the relative had previously used.
With the help of the system, Xie Jin decided to pursue his dream of becoming the number one dungeon supplier.

This is the story of a person who transmigrated into a world with a radically different worldview.

“Sanye, do you know that you are like a book. Every time I see you I want to … sleep.”

After some hesitation, Xin Ai finally decided to approach Jian Sanye, who was famous for his power. She tried hard to make him happy, justify thousands of ways, sacrifice self-esteem and dignity, with the main goal to find her missing sister.

Three months later, the man threw a check in front of her, “I’m tired.”

Xin Ai stood up with her innocent body without a single strand, smiled wryly and said, “Alright, I’ll go as far away from you as possible.”

When they met again, Xin Ai closed her eyes to Jian Sanye’s presence, it made the man angrily push her against the wall, “We’ve slept together a few times. Is it so easy to forget me?”

Xin Ai smiled so sweetly and teasingly, putting her hand on the shoulder of the man, “Sorry, I have slept with quite a few men, sometimes I can’t remember it even happening. If I may know, what’s your name, sir?”

“Just watch, I’ll make you remember who I am.”

- Description from Novelupdates

In the blood-soaked world of Magus , Aizen, a young man from Earth, finds himself thrust into a brutal reality where Sorcery reigns supreme. Once a lowly servant, despised and humiliated, Aizen hid his true intentions beneath a mask of submission. With each insult endured and every drop of blood spilled, he sharpened his resolve, guided by the mysterious Wisdom System.