I Am the System, and I Kill the Protagonist of Destiny at the Beginning

Zhang Mu traveled to a world where spiritual energy was revived. He never expected that someone would travel with him, and they were still in the same body. What's worse is that he actually traveled through time and became the great wronged system, and he had to serve the so-called protagonist Long Aotian? "Let me serve the protagonist? Is that okay? Let's die together!" With the determination to die, Zhang Chen issued an impossible mission: "Ding! Congratulations to the host for triggering the mission to hunt Deathwing. Please kill the ten-star monarch Deathwing within ten seconds. Completing the mission will reward you with an increase in strength to the ten-star monarch. Failure in the mission will punish you by erasing the soul and reshaping the chaotic body." Ten seconds later, The protagonist dies. … This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.