Sui Ying is an incubus trainee who has transmigrated to the real world. The System tells him he can only become a qualified demon by completing his seduction mission.
Sui Ying: With my incubus physique, seducing a little virgin should be a piece of cake.
System: I forgot to tell you, he's homophobic.
Sui Ying: ??
*
His target, Qin Yizhou, is Sui Ying's roommate: broad-shouldered, long-legged, tall, handsome, and a solitary cold beauty.
The abundant vital energy around him makes him like a walking cake. Sui Ying can't help staring at him and drooling, carefully leeching off the energy spilling from him to stay nourished.
Qin Yizhou finally loses patience: Why do you keep following me!
Sui Ying wipes his drool: Dude, you smell delicious.
In front of everyone, he wraps himself around Qin Yizhou's leg and wails:
"Just let me take one bite, just one! If I don't eat soon, I'll starve to death!"
Qin Yizhou: ?!!!
*
After an accident, Qin Yizhou is forced to take on the task of tutoring Sui Ying.
Watching his roommate teach with such earnestness, Sui Ying's incubus brain gradually wanders into inappropriate territory.
Sui Ying: Want to play teacher and student during our tutoring session? Don't worry, I'm a professional.
Qin Yizhou: What on earth are you thinking about all day!
Just as Sui Ying is about to reach for Qin Yizhou's pants, Qin Yizhou grabs his misbehaving hands and cuffs him.
Sui Ying: It's fine, I still have my mouth--Mmph!
Forced to wear a gag, Sui Ying makes muffled sounds of protest, glaring at Qin Yizhou with his beautiful eyes.
Qin Yizhou gazes into those watery eyes, his expression dark and unreadable, like a storm brewing.
*
His advances falling on deaf ears, Sui Ying grows so hungry that he's dizzy. He swears he'll get a meal, and asks the System to change his target!
His new target is Qin Yizhou's best friend.
But when Sui Ying turns on the charm, all he gets is a horrified look.
Sui Ying: Even if you don't want to, um... do it with me, there's no need to be so scared you're shaking!
The best friend looks utterly defeated: Look at the murderous look Qin Yizhou is giving you from behind! If you want to die, don't drag me into it!
Sui Ying turns around and finds his roommate looking grim, barely suppressing his anger.
Qin Yizhou, rumored to be homophobic, pulls Sui Ying into the room and kisses him aggressively.
An abundance of high-quality vital energy passes between their lips and teeth, and Sui Ying gets his fill.
He accidentally reveals his true form, showing Qin Yizhou the trademark tail and wings of an incubus.
*
After a night of seduction, Sui Ying wakes up aching all over. He struggles to his feet and declares his mission a success.
But halfway out of bed, Qin Yizhou scoops him back up and holds him firmly in his arms.
His roommate kisses his sensitive earlobe and says, insatiably, "Baby, let me touch your tail some more."
Sui Ying: Wait, how can someone have stronger desires than an incubus!
Theme: Hard work brings a new life.
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