Su Yu is only 22, yet he's been diagnosed with a terminal illness caused by premature aging and has little time left to live.
Since working hard won't help, why not retire early? He takes a security job at an upscale women's apartment complex and unexpectedly binds himself to the Old Man Merit System.
As long as he keeps an old man's daily routine and does one good deed a day, he can earn merit and exchange it for extra years of life and god-tier rewards.
And so, the women's apartment complex takes on a whole new look.
While others stand guard, he goes fishing. While others patrol, he plays chess. A single set of tai chi saves the life of a medical authority. A bowl of leftover rice he casually fries makes a Michelin-starred chef beg to become his apprentice. He even fixes a sewer on a whim and helps a frosty female CEO win a trillion-yuan business battle!
As Su Yu's secret identities continue to come to light, the aloof female CEO and top-tier star both crowd around the security booth.
"Old Master Su, if you'll just come out of retirement, I'll give you my trillion-yuan fortune!"
Su Yu lifts his insulated flask of goji berry tea. "Don't make a fuss. Move aside, you're blocking me from earning merit and extending my life."