The King of The Worlds - Book 4: Chapter 84: Plan

[New Hit Book] The king mysteriously withdraws, and just when everyone breathes a sigh of relief, they are unaware that an unprecedented storm is about to unfold!

Before death Qin Tailong left two magic tools to his son, Qin Dong. In his father’s last words, Qin Dong realized his father had been murdered by Lord Wanpeng, who coveted one of the family magic tools—mystic chaos ring. Bearing the hatred in mind, Qin Dong swore to revenge against his foe. He escaped to the mortal realm temporarily, continued to strengthen his cultivation base and studied the secret hidden in the seals of the ring. While reveling the secret, he found five ladies were the key to the release the seals. Their romantic relationship with Qin Dong was established the moment he was born.

- Description from Novelupdates

mc gets transmigrated to Fallout New Vegas with the merchant system. let the questionable adventure begin.

He was just a common and unremarkable villager, with his face towards the yellow soil and his back to the sky, bullied and despised by others.However, one day, he suddenly received a heritage of golden advice, and from then on, he embarked on a path of counterattacking his fate.