My Parasitic Beast Is so Powerful

Zhu Zitao's left arm is fused with a dragon claw. An alien star suddenly replaced the moon, and ten huge light gates descended on the earth. The people on earth had to start a life-and-death struggle for survival with the alien creatures. Zhu Zitao, a high school martial arts scumbag, was accidentally parasitized by a dragon claw, and then he was shocked to find that the dragon claw brought him various magical functions. He could swallow the essence and blood of living creatures, strengthen his internal martial arts, possess the power of a dragon, and even open up fellows to other worlds at will...