Cheng Mo, an ordinary shut-in, was chosen to travel to another world because his chuunibyou kept acting up.
Due to a minor System bug,
he wasted ten years and accidentally cultivated the System's inner arts backward through 999 levels. At last, he left seclusion at the age of one hundred to search for treasure.
He must cultivate inner arts to regain his youthful appearance, while also completing the System's quests.
And so Cheng Mo set out on his adventures, encountering demonesses, assassins, beauties, palace mistresses, heroines...
Cheng Mo doesn't rely on his looks, but on his skills! (Not an invincible protagonist story)
