On Song Zhiyao's eighteenth birthday, his parents happily pulled out a ring of keys.
"Congratulations on becoming an adult! Here's a secret: our family actually lives off rental income! From now on, these keys to our tenants' apartments are yours!"
Song Zhiyao looked around the shabby rental apartment where he'd lived for eighteen years. ...?
The next day, both his parents disappeared, leaving behind only a note.
The note listed the address where he was to collect rent.
It also included a reminder in bold red letters:
[Be sure to collect the rent before the end of the first day of each month!]
The first of the following month.
Song Zhiyao took seven keys and rode the bus to the address his parents had left him, ready to collect the rent on time.
Wow.
The entire building belonged to his family.
What a waste, though. There was only one tenant on each floor.
He knocked on the door of Apartment 101.
A silver-haired vampire in a black robe opened it.
"I'm about to starve to death. If I die of hunger, I won't be able to pay rent. Let me take a bite first."
Song Zhiyao said, "Just one bite, okay?" For the money!
He leaned his fair neck, pale in the moonlight, toward the vampire.
The vampire narrowed his eyes, bared his sharp fangs, drew him into his arms, and savored him to his heart's content.
It had been so, so long since he'd tasted blood this delicious...
Apartment 201.
A cat-eared youth opened the door.
His soft tail curled around Song Zhiyao's leg and pulled him onto the sofa.
"No one's petted me since I transformed... Make me happy, and I'll pay the rent."
The cat-eared youth landed in Song Zhiyao's arms, so he had no choice but to rub his ears and stroke his belly.
He petted him until he was out of breath, and the youth began purring contentedly in his arms.
But then his eyes suddenly turned fierce, and he pinned Song Zhiyao to the sofa, licking and biting him!
Apartment 301.
It was home to a newly created android.
"No human is willing to love me. I have no reason to go on living."
The android's expression was gloomy. "Could you call me Baby? It would make me feel loved."
"Baby." For the money, Song Zhiyao was willing to do anything. "Can you pay the rent?"
"That sounds so nice, so nice. Could you say it again?"
The android seemed to have had an excitement switch flipped. With one hand, it pinned Song Zhiyao against the wall.
"Say it a few more times... Call me Baby, Sweetheart..."
Collecting rent was way too hard!
Sore all over and parched, Song Zhiyao finally made it to Apartment 701.
The door opened.
Finally! A normal human lived here!
But...
It was his sworn enemy from school, the guy who shared the bunk bed in their dorm room and was always picking on him!
His enemy looked like he had been waiting a very, very long time.
His brow was furrowed with impatience!
"Can't you get rid of those annoying things downstairs?"
His enemy shoved a card into his arms.
"From now on, come straight to me. I'll pay for all seven tenants."
Song Zhiyao hated this enemy more than anyone at school. He tossed the card back with disdain. "Hmph. Just watch me kick you out first!"
The two started arguing, and Song Zhiyao lost track of time.
Before he knew it, midnight had arrived.
The moment the clock struck, countless terrifying tentacles burst out of his enemy's body!
They wrapped around Song Zhiyao and dragged him into the apartment!
After that... later that night,
the tentacles coiled around him, toyed with him, and took him.
He not only failed to kick his enemy out, he couldn't leave either.
When Song Zhiyao left the rental building, he was being carried to a car.
He was in despair.
Would he have to go through this ordeal every month on the first from now on?
Song Zhiyao soon found out.
Once a month?
Ha. He was still far too naive...
Probably a chaotic, everyday harem story?
Theme: Everything is hard at the start.