High Martial: Just Turned Eighteen, and I Bound the Strong-in-Old-Age System

Su Bai transmigrates to a high-martial-arts world, where, at the age of eighteen, he unexpectedly awakens the “Old but Still Going Strong System”! [At eighty, you've been useless your whole life. Now you're halfway into the grave. Looking back on a life of eating, drinking, and accomplishing nothing, do you regret it?] [Main quest unlocked: Host, give up smoking, drinking, and gambling to prove your commitment to the Martial Way.] Su Bai, who has no bad habits whatsoever, stares at the System quest and falls into thought. The next moment, [Congratulations, Host, you have completed the quest. Your reward has been issued!] Faced with a System that asks and answers its own questions, Su Bai watches a question mark slowly appear above his head. Has the System bugged out? He soon discovers that the System really does seem to have bugged out. [Main quest unlocked: Host, defeat your cousin, who is at the mid-Fifth Rank, and reclaim your place in the family.] Su Bai takes the cousin who has just been carried out of the delivery room and slaps him on the bottom. [Main quest unlocked: Host, flee at once from Ning Ziyue, the Ninth-Rank peak demoness who can destroy a nation. Do not even think about fighting back.] Su Bai looks at the delicate young beauty beside him, whose strength is only at the Second Rank, and curls his lips into a wicked smile. The peak powerhouse of eighty years from now is still a nursing infant today. The peerless empress of eighty years from now is only a helpless young girl today. Having stumbled upon an enormous loophole, Su Bai frantically farms quests! Many years later, When alien evil gods invade, Su Bai alone guards the dimensional gate, slaying countless demons with a single strike! All of humanity is shaken. “Su Bai is the Great Emperor of humanity, invincible in this age!”