After the Demon King Binds to the Cannon Fodder System (Quick Transmigration)

The Abyssal Demon King Gu Yiling awoke from a long slumber to discover that he was bound to a cannon fodder System. He was ordered to complete missions by playing the role of cannon fodder. The System promised him money, power, status, and even immortality, assuring him that he would receive every reward once he completed all his missions.

Gu Yiling, the Abyssal Demon King who lacked for nothing, accepted with interest, figuring it would be a good way to pass the time.

First World:

System 250: You must play the role of cannon fodder well. Follow the plot and become the protagonist's stepping stone.

Gu Yiling said he understood, then killed the protagonist, took his place, and reached the pinnacle of life.

System 250: ???

Second World:

System 250: You must play the role of cannon fodder well. Just get killed by the villain at the designated time, and the mission will be over.

Gu Yiling said he understood, then killed the villain, became the biggest villain himself, and wrecked the plot.

System 250: Host, what are you doing??? You're cannon fodder!

Gu Yiling smiled faintly. "I'm the Great Demon King."

At long last, a System on the verge of retirement, with a perfect mission completion rate, suffered the greatest failure of its System life...

2019.10.17

Theme: Everyone can reach the pinnacle of life