Ichiban Ushiro no Daimaou - Volume 6, Chapter 4 — An Afternoon of Playing with Dolls

It’s said that the prince of virtue had almighty martial arts. It’s said that the prince of virtue had the most handsome appearance in the world. It’s said that the prince of virtue was brilliant. But all was legend! A fire ruined his wonderful appearance and his legs. Even the talented bride under their marriage agreement were replaced furtively. Ye Liu-li was his bad-luck substitutive princess. She went a long way to graduate from Medical University and had her internship with pain and joy. Who knew that in order to save a suicide patient, she fell off the building and crossed time into a “chessman” of prime minister. She had also been married to the disabled prince replacing her elder sister. On the wedding night, when most other couples were having their romantic night, she was thrilled. It didn’t matter. Revenge never came too late. She would never let go of any of them who entrapped her or harmed her.

- Description from Novelupdates

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...

Lin Fan awakens to a world where chaos reigns, stripped of family, status, and safety. But within the turmoil, he discovers a powerful secret—the Beast Abilities system in his mind.With every threat he eliminates, he earns vengeance points, enabling him to level up his physiques.From the humble Wild Rabbit’s ability—[Rabbit's Hearing], [Swift Foot], [Magnificent Leap]—to the ruthless strength of the Wolf—[Hunter Instincts], [Iron Claws], [Leader of the Pack]—and the Ape’s raw power—[Climb Trees], [Strong Arms], [Inhale Qi]—Lin Fan hones his skills with every battle.Years later, as the feared grand master of a prestigious sect, he looks back in wonder. Who would have believed that his rise to greatness began with the unassuming gifts of a wild rabbit.

Mo Ran felt that taking Chu Wanning as his master was a mistake.