MTL - The Good for Nothing Seventh Young Lady - Chapter 2660 Decisive battle (2)

Carter Williams was your typical twenty year old loser. After a fight in the street leaves him unconscious he wakes up in the body of a young dragon in an entirely new world.

Armed with a system to assist him and two beautiful wives to support him, Carter vows never to live his life hiding in the dark again as he seeks the title of dragon king.

Xuanyuan was reborn into a strange new world where training to be a Xian was a cornerstone. There was however something ancient dwelling inside his body. He could now devour all of creation…

This is the journey of an ordinary boy and his transformation into the supreme being that reigns over all existence! Everywhere he went, he could not help but tie his fate with numerous women. It did not matter whether they were a goddess or a devil…

- Description from Novelupdates

In short, MC inadvertently created a world, but as the creator of the world, he did not know the world at all. He should have lived here like a fish in the sea with some plug-ins that MCs always have. But now he is even stumped by the bugs in the instant world. Luckily, in this world he has found his shadow guard, or his lover? So the daily adventure is getting not so boring…

- Description from Novelupdates

Crossing to One Piece world, he became Roger’s younger brother.