MTL - Princess Medical Doctor - ~ 987 don't make trouble, spring is worth a thousand dollars

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.

John sacrificed himself to protect Earth and resist the gods, only to be betrayed and killed by his best friend.To his surprise, after death, he was reborn just before the launch of the game “Gods Descend.”In this life, he vows not to let the tragedy repeat!Upon entering the game, John masters the power of reincarnation and unexpectedly awakens an SSS-level talent—“Plunder”!By killing monsters, he can plunder their attribute points; by killing boss-level elites, he can plunder their talents, skills, and special attributes.Killed a tusked wild boar: Physique +1Killed a bloodthirsty wolf: Speed +1Killed an elite boss: Gained 10 skill pointsKilled an epic boss: Gained 10 luck pointsKilled a legendary boss: Gained an S-level talent, Spell Combo...As John grows through killing, when the game merges with reality and the gods descend, they finally realize that there is an existence on Earth that they cannot provoke.John: “I will only make one move. If you survive, you may leave.”In the next second, the ultimate forbidden spell activates: Ragnarok!

Hiding in the Cold Palace and eventually becoming a Boss of Sorts. Li Mu was transported to a fantastical world and became a measly eunuch of the State of Xia. Despite having initially thought that his life would be a miserable one, he had unexpectedly acquired a check-in system.

A failed investor from 2017 got drunk and woke up in the 1980s. China is just opening up, and the economy is blooming. There is also the dissolution of the Soviet Union, the bursting of the Dot-com bubble and other financial crisis. He used his knowledge of the future and slowly build up his empire.

- Description from novelupdates