In an attempt to settle a three generation family feud, Baekhyun has to marry someone from the other family. Being the silently rebellious son that he is, he decides to ditch home two days before a formal meeting was suppose to take place. He runs off with nothing but his wallet, some cash, and his I.D. Knowing that being on the streets would make it more likely of him being found-- with the connections of a frien-- Baekhyun ends up being the maid of a large villa on the beach belonging to the infamous Park's only son: Park Chanyeol.

My name is Byun Baekhyun. My stepbrother's name is Park Chanyeol. I'm the captain of my school's varsity soccer team and I have good grades, more or less. My stepbrother has a "below average" IQ of 65. He's been home-schooled for the majority of his life. Yes, he's mentally retarded. Intellectually disabled. Cognitively handicapped. Whatever you call it. He doesn't do much with his life but water the plants at our family's florist shop and try to solve second grade math problems. He still counts on his fingers. Life's been different, to say the least, ever since he moved in with us. My name is Byun Baekhyun and I want my stupid stepbrother to disappear.