Shinwa Densetsu no Eiyuu no Isekaitan - Volume 9, Chapter 3 – Every Speculation, Part 7

This is the right version of the story on my account the other one had some problems on webnovel.A story about traveling through a system! Incest, multiple blood relatives, harem, pony cart, and light training. The protagonist's soul traveled through time and space to a newborn baby, and he was sent to Xia City when he was just born. At first, he didn't know that he was Liu Ruyan's son! The most important thing is that he was bound to a very bad system called the money exchange system, so after he could speak, he showed a melancholy temperament! Others thought he was sad about something, but every time someone asked him, he shook his head lightly and said no! But only he knew the pain in his heart! He guarded a system, but the system asked for money. It gave money for intelligence, but I still gave money for strength! Unfortunately, Liu Xuan, who was thrown into the welfare home, lacked money! Otherwise, he wouldn't have been hungry every day and bullied. Until Liu Ruyan came and handed over a 10 billion black card, the world finally changed. The beautiful mother's soft breasts that made people linger, and the long black legs that were longer than his life, yes, that housekeeper, the loose maid clothes, weren't they just waiting for him to fuck them? At this moment, Liu Xuan, who had been single from the previous life to this life, immediately notified the dog system after receiving the black card handed over by the beautiful mother, and directly blessed his bird gun that was growing well into a thick cannon...

Traveling through the world in the book, he also became a dog-licking villain. Fortunately, with omniscience and omnipotence, Su Hao successfully reversed his fate.

Su Hao set a small goal for himself, to play the villain well first, so that the heroine would hate him, so he directly took the drunk CEO Bingshan to open a room, and forced him to be afraid, but the heroine in his arms not only did not dislike it, but Eager to try you…

- Description from novelbuddy

Though he received the skills necessary to teleport across worlds, the king who performed the summoning ritual attempted to trick him into wearing a slavery collar, this annoyed him so he kidnapped the princess and returned to Earth.