My Upgrade Comes From Stepping On Ants

Adopted son Lin Feng sacrifices his blood to cultivate medicine for his sister, only to be wrongly expelled. After being knocked down by Gu Ling'er while critically injured, he awakens a game system where damaging ants and flies grants upgrades. With this system, he repairs his body, strengthens his cultivation, and returns to expose the truth, heal his bond with his sisters, and finally fall in love with Gu Ling'er. This is a story of overcoming绝境 through the system, slapping faces of everyone who mocked him.