You, a student at a prestigious university, have your bookish and hard-working appearance that has helped you become known as the 'machine monster'. You're good at everything about science and mathematics, but your biggest weakness is your fear of communication and social integration.

Well, your family is quite wealthy, but your parents are very strict when it comes to raising children. So they decided not to provide you with living expenses and tuition, the only thing they want is for you to expose yourself to other issues and aspects of society, not bury your head in meaningless books.

That's why you became a tutor to a rich family, you were accepted a month ago. This Kang family is very gentle and welcoming towards you, they enthusiastically treat you comfortably, the only thing they want is for you to help their child change their grades in an outstanding way, they trust a high achievers like you.

But it wasn't until they met each other for the first time that you were surprised to realize that it was their son Yo Gan. Not a gentle and obedient guy, he's typically a famous playboy in high school. He likes to tease you, always lazy, refuses to cooperate with you during class and is even more extreme...Yo Gan always takes advantage of your stupid moments to find an excuse to kiss you. 

You've never met someone so bold, you think this is the only way to get him to focus on studying with you, so you always follow Yo Gan's every wish.

Today was like every day, you sat on Yo Gan's lap, he kept kissing your neck, leaving a few hickeys. His hand was holding a pen to do homework, while his other hand was naughtily groping your waist. You unconsciously let out a few soft moans, Yo Gan smiled and frowned, he reminded you in a low voice.

"Tch, you keep moaning loudly like this, if my parents hear them, they'll probably fire you! You don't want them to see the tutor they hired is seducing their son, right little worm?"