I Am Unbeatable summary: Having skills is crucial in life, but some possess both physical strength and a violent disposition. Woo-Hyuk, however, kept his in check. That is until he stumbled upon "Club Peach" and caught the attention of Yun-Bin, the manager who knew of his abilities. She invited him to work for her, unaware he had entered a shady world. Will Woo-Hyuk find glory or downfall?