Skill Creation in the Fantasy World - Chapter 3: A Slave.

A man is reborn into the world of Avatar: The Last Air Bender as a waterbender from Katara's tribe. Best of all, he was the same age as her, and he had a system with him to help.He knows the future and a system that lets him continuously get stronger by completing quests or long-term missions, as well as giving him the ability to copy abilities from others for himself. He will become invincible in the world of Avatar, even more so than the Avatar himself.

In his previous life, the genius angler Zhang Yang was seen as a heartless spendthrift by his family and friends.Due to a momentary mistake, he made a grave error, and the death of his father became his lifelong regret.In this life, fate has given him a chance to start over. Zhang Yang decides to rely on his skills and knowledge to make something of himself!This is the story of a genius angler going back nine years, using his exceptional skills and foresight to reach the pinnacle of the professional fishing sport.

Chu Mu Yun relied on his story of 《Demon Realm》 to become a one-hit wonder in JJWXC, but the him who had written seven mental cases to abuse seven mental cases to death would never have expected that he himself would transmigrate into this shitty novel!
What the hell is this system on the bracelet?
And what the hell is this either propose to seven men, or suffer the taste of a tragic death experience under the hands of these seven people?
I just wanted to write a novel to satisfy my bad interests, who would actually want to get tangled up with a bunch of mad dog sad*st crazies?

- Description from Novelupdates

This is a cliché story about two young people saving the world.