Katahane no Riku - Chapter 15.The beauty and the beast

Dewitt, known as the Iron Marshal, is now on the verge of death. Just when the whole empire thought he was not going to survive, a small fox came down from the sky. The little fox was so powerful that it woke up the Marshal who had been in a coma for a month with one paw. If Wen Jin knew that the price of his paw was to become the Marshal’s fiance, he would refuse, because the legendary, ferocious Marshal was a well-controlled villain, only touching his fluffy body every day.

Wen Jin: You’ve had enough, I’m going bald!

Dewitt: Ten more minutes.

Wen Jin: Not a minute longer!

Dewitt: Then let me kiss you.

Stupid and lazy fox x black-faced Marshal meet in a world full of Zergs and war. Follow this intergalactic tale as they begin to trust and depend on one another.

- Description from Novelupdates

Transmigrating into the world of Douluo Dalu, I unexpectedly awakened the same Martial Soul, Luo Sanpao, as Yu Xiaogang, and was discovered and taken as a disciple by Liu Erlong.Originally, I thought I would have to live cautiously under Liu Erlong's protection for the rest of my life. But who knew that a system would suddenly appear, binding me to female protagonists and allowing me to grow stronger by earning “conquest points,” evolving my Martial Soul!Now that the system has arrived, Xiao Yu feels there's no need to live cautiously under Liu Erlong's protection anymore. Instead, he can openly rely on conquering a group of female protagonists to dominate Douluo Dalu!Wherever there are female protagonists, there will surely be Xiao Yu's presence!And wherever Xiao Yu's presence is, his Martial Soul, fully evolved into the Radiant Holy Dragon, will surely shine upon the world!Liu Erlong: “Xiaogang, let's keep some distance from now on. I'm afraid Xiao Yu might misunderstand!”Xiao Wu: “Brother, I've fallen for Xiao Yu. Please forget about me!”Ning Rongrong: “Xiao Yu, from now on, my Seven Treasure Glazed Tile Pagoda will be your exclusive money bag!”Zhu Zhuqing: “Xiao Yu, as long as you have the ability, I don't mind you taking all three of us sisters!”Qian Renxue: “For you, giving up the Angel God's position is nothing!”Hu Liena: “Xiao Yu, once I become the Pope, I'll immediately step down for you. I'll focus on being your wife!”

In a world where human and monsters relied on mystical fruits and their inner power to fight for dominance, a lost soul was thrown, given the powers from all the other worlds he’s known. But there was a catch; he had no control over what power he would get! With knowledge beyond that of most, he sails his path to the top of the one piece world!

- Description from Novelupdates

10 years searching for his lost sibling.