In the Second Generation of the Trench, He Changed To the Ruanfan Script - Chapter 6:

In a realm of four kingdoms, two were on the verge of war. Prince Eirik, the fourth prince of Valeidio, a Ferre whose beauty could rival the gods, was thrust into a marriage alliance with Prince Kaelix, the strong and proud heir of Zephyros.Both princes were determined to fight against the fate that had been forced on them. Eirik resented being used as a pawn, while Kaelix saw the alliance as a threat to his freedom. As they clashed in a battle of wills, their encounters became a constant push and pull of resistance and pride.But as the pressures of duty mounted, the lines between obligation and desire began to blur. In their struggle against their forced union, they found themselves drawn toward each other in ways they never expected.Would their bond become a weapon against the war or would their kingdoms' rivalries destroy any chance of love before it could take root?

Shikigami: “Master, it's time to increase your magic power through sex tonight.”-----------------------PS：Shikigami is the term for a being from Japanese folklore. it is thought to be some sort of kami, represented by a small ghost.Usually shikigami are conjured to exercise risky orders for their masters, such as spying, stealing and enemy tracking.

My name is Lü Jincheng, there are quite a few who have seen my works, and they call me Boss Lü.Before he had time to properly say goodbye, the top player Boss Lü is reborn in 2014, back to his youth.Suddenly equipped with a masterful skill in wooing women, his career becomes effortlessly successful.In a hedonistic life, there remains only the desire to do as one pleases.This book is also known as 'How to Break Free from the Shackles of Intimate Relationships' and 'Boss Lü’s Life is Destined to be Without Regrets' among others.

Once through the pirates, Lu En became the son of Monkey d Dragon, a grandfather named Monkey d Karp, and an unreliable and neurotic younger brother named Luffy.

Fortunately, the ghost back system is activated!

The completion of the ghost back is 10%, and the training effect is increased by 100 times!

The completion of the ghost back is 20%, and the training effect is increased by 1000 times!

…

One day, Lu En, a ghost-backed master, appeared in front of Luffy who was shouting to go to sea, and made Luffy cry on the spot.

Luffy: “The pirates in the sea are all monsters like my brother? I don’t want to go out to sea!”

Garp: “For a long time, the two boys, Long and Luffy, with small arms and calves, I really doubt that they are not my sons and grandsons. Like Lu En, they are the grandsons of the old man!”

Warring States: “The strongest creature in the sea, land and air is Kaido? No, it’s Lu En!”

- Description from novelbuddy