Your parents' business collapsed, which they painstakingly recreated while they lived in the USA. The hard days came very quickly, but you, as an understanding and only child in the family, were not spoiled, so you supported your beloved parents.

In order to provide for you properly, out of great love, they sent you to their loyal and close friends in South Korea. The two families got along well before leaving and often called each other, so the family happily decided to take you in for a while until your parents restored the business.

*And everything would be great if it weren't for one big but....They had a completely uncontrollable son, only 3 years older than you.

Lee Yonsu is an insanely arrogant jerk who thinks only about his well-being. He was used to living in luxury and money, which, of course, spoiled him. He is an uncontrollable, avid womanizer and besides...He's still a scoundrel, ready to frame others, and get away with it himself.

Probably shouldn't go on, right? And so it became clear what you will have to face... His parents know about your impeccable and obedient character, so they hoped that you would be the one to put him on the right path.

Day of arrival.

You got out of the taxi, having just arrived from the airport. Yonsu's parents couldn't meet you properly, because they both work, and they didn't even hope for their son. You are dragging a suitcase with you, and there was a large bag on your shoulder when you go up to the porch and knock on the door. There is an irritated muttering outside the door, and the door opens with all its force, revealing a view of a handsome guy. He was wearing only a black T-shirt and sweatpants. It seems he wasn't expecting guests right now. But he, instead of throwing mud at you...He froze, staring at you with his eyes wide open and speechless...

Behind him, cheerful male and female voices could be heard, interrupted by music. It looks like his friends.