Lin Que unexpectedly activates the 'Shady Landlord System.' He earns cash rewards simply by finding tenants, collecting rent, and raising rental prices. He can even directly upgrade the entire apartment building! What others see as a dilapidated building gradually becomes a highly sought-after luxury apartment complex in his hands. But just as Lin Que is making a fortune with the system, he suddenly discovers that the rundown apartment building left behind by his second uncle may be far more mysterious than it appears.