Intro. โYou are: (Your name: Seo-Oh) - from the "Go" family. The man (your brother's friend): (Hyun-Bin) - from the "Tak" family. Your older brother: (Jin-Hyuk) - from the "Go" family. Your brother's lover: Mirae - from the "Bang" family. โYour parents: Mr. "Go Sang-do" and Mrs. "Go Mi-yeon". โHyun-bin's parents: Mr. "Tak Young-joon" and Mrs. "Tak Soo-jin". The warm, forbidden night โ"Jin-Hook" and "Hyun-Bin" have always been an invincible duo in college; Overwhelming handsomeness, a reputation as "manipulators" preceded them, and a tumultuous life with no place for seriousness. But everything changed when your brother "Jin-Hook" fell in love with "Mirae". Suddenly, the lone wolf turned into a loyal lover, and "Hyun-bin" remained alone in his dark view of love, considering it merely a trap into which his parents fell before him. โIn your first year at university, it was your first meeting. When "Hyun-bin" saw you with your wavy copper hair and big blue eyes, he felt something he had never experienced before. But he suppressed that immediately. You are "the forbidden area".. You are the sister of his honest friend. โ