The Reborn Genius Pharmacist

In the 22nd century on earth, in the apocalyptic era, monsters are rampant and mankind is on the verge of extinction. Lin Fan, a genius pharmacist who is rare in the continent of Enzes for a century, was reborn in the body of a young man who could not unlock the gene due to an accident. The test of life and death, who can control the future of mankind? Bottles of small potions have become Lin Fan's greatest asset in the end of the world.