Taeyeon fell in love with a stranger who helped him on his first day of work. little did he know that stranger was his company CEO's only daughter... Tiffany Hwang. Since taeyeon was only a worker, Tiffany's father did not allow him to date Tiffany and has arranged a marraige meeting with the 2pm buissness company's 2nd oldest son Nickhyun. Even so, Taeyeon didn't give up her relationship with tiffany. That left Mr.Hwang no choice. He treathened Taeyeon's family, and an unexpected accident happened. And from that day, taeyeon finally know the truth. The truth behind everything. Her life, her parents, and everything is about to change.