The leader of the vicious mafia elite trio "Xenon", Kim Jong Kook, had his eyes set on kidnapping SBS Police Department's Chief's only daughter, Song Ji Hyo. Fortunately for her, her father had deployed his tactic squad trio, "Void", as her personal bodyguard.

This is a series of Running Man's High School / College Alternate Universe which circles the life of Kwang Soo, the new transfer student, who finds himself in a love triangle between the school's two main powers, student president Jae Suk and the strongest athlete Jong Kook.