The NPC sets out to defeat the demon king - Chapter 2

Earth, 22nd CenturyThe incurable cancer that served as a nightmare for people one century ago is now just a rare but curable disease.With the world’s development, there are now cures for all types of cancer. The Earth is now a planet with no more people suffering from cancer.Except for Zen.Diagnosed with a mutated cancer that was the only one of its kind at an early age, he sank in despair.That was until an opportunity which turned his curse into a blessing presented itself.What power would Zen gain from the disease that plagued him since his childhood?***The art is not mine, all credits to the original artist.

The invincible strongman who roams through the city by day and night, a supreme soldier king that moves across the urban landscape.

One day, Zhang Fan, a poor medical student, receives a medical system from the future. This turns him into a new shining star in the medical field. Along the way, he must face medical corruption, competition, and infighting from other doctors, and even find time for a love life as he strives for the top of the medical field!

- Description from Novelupdates

Have you ever thought that the state of the world as it presently is, could revert to the laws of the ancients? When a series of strange incidents beginning with the disappearance of his friend led Luo Yuan to question the possibility of an apocalypse, he becomes embroiled in the midst of a global-scale chaos.