MTL - My Spy Years - Chapter 964v3 behavioral psychology

Ye Chen was an honest and hardworking man, but he caught his girlfriend who was having an affair with a wealthy second generation, because of his sadness he decided to return to his hometown to calm down, while on his way he met a god cultivator and ended up being his student . After that his life began to change, on the right and left arms holding the Beautiful girl, from the start of the School flower, rich young women, beautiful teachers, beauty Ceo, famous beauty stars, beautiful goddesses. one by one the women came to him

As a walk-on, he had been the mistress of his sugar daddy for three year. However, they only had met each other for a few times.
As a boss, his sugar daddy had tons of lovers.
The walk-on: The cake shop is the only thing I love in this world. Lovers? Never want one.
The boss: No problem. Nobody wants that.
Then, they fell in love with each other…
Shameless playboy x heartless rogue
1v1, this is not a decent love novel.

- Description from Novelupdates

Imagine being murdered on your way home to your girlfriend, only to have your soul stolen and handed over to the Demon King as an offering for goods. Could it get any worse?This is the story of a man cursed with a skeleton body, now working alongside the Demon King to unravel the mystery of his new existence. As he navigates this dark new world, he discovers the twelve universes that govern humanity, encountering both allies and enemies along the way.Struggling to regain his humanity, he must master his newfound powers and survive the dangerous politics of the 12 universes. Can he uncover the truth behind his transformation and reclaim his soul, or will he fall to the darkness threatening to consume him?

He Chuan transmigrated to an alternate world where everyone could reincarnate.

In this world, all citizens who reached 18 years old could acquire a chance to temporarily reincarnate to another world.

They could reincarnate to various worlds such as an Eastern fantasy world, Xianxia world, Western fantasy world, an urban world with advanced martial arts, or even a sci-fi world of the future.

They would acquire a mission along with the ability required to survive in that particular world.

If they successfully completed the mission, they would become a permanent Reincarnator. They could then embark on the journey of being rich and successful.

If they failed the mission, they would become ordinary commoners. The gates to the new worlds would be forever closed to them.

He Chuan reincarnated to his first world.

[You reincarnated into a world of martial arts. You are an orphan and a loser. You awakened the Deduction System.]

He Chuan devoted himself to deducting various kinds of martial arts. He extracted the essence of each technique and merged them into a unique system.

In the end, he became the greatest legend in Jianghu.

[You acquired S rank evaluation. You may choose to keep the power you gained during this reincarnation and use it again in your future reincarnations.]

He Chuan chose to keep the Deduction System decisively.

He then reincarnated to his second world.

[You reincarnated to a fantasy world. You are talented and are the eldest son in the royal family.]

Sit back and enjoy as He Chuan breaks through the limits of the world and crushes the void.