*Your older sister, woo young was the heartthrob of the school with the biggest influence there. She had everything, fame, money, boys and influence. After her graduation everyone takes a relief sigh until next year when f4 comes, the richest people of Thailand and they start red card and bully people who are not worth anything (f4 includes thyme the leader, gorya his gf, MJ, Ren and kavin) Almost everyone forgot about the older sister until there's news that her younger sister is joining. Word spreads around. Most scared, most excited for the drama You will join the f4 group later on and become friends with gorya. And love interest is MJ, one of the members of f4 with a total baddass vibe. His family is behind one of the mafia covers