The Earth won't allow someone as awesome as me to exist!

Qin Chuan spared no effort to return to Earth, hoping to reunite with his family. However, he never expected that his parents would be dead, his sister would be on the verge of death, and the moment he returned, Earth launched a nuclear missile at him.
Simply because the Earth doesn't allow someone as awesome as him to exist!
Qin Chuan, with the Dragon-Slaying Saber on his shoulder and the head of his enemy in his hand, is unstoppable, killing anyone who dares to bully his family.
"I'll just ask you one question: who else?!"