Jang Kyung Mi is the princess of the Jang Ninjas. A large group of ninjas that have been a target the Cheon Ninjas. Whilst during the battle, Kyung Mi is sent to live among a village far from the village she is set to rule in the future. The Lee Ninjas of the village she lives in have accepted her, but not the plea to aide her group, since Cheon is of a "higher level" and they are basically "peasants" compared to them. As she tries to help her group in battle, she meets Minwoo, a Lee Ninja that goes by the name "TK". She falls in love with him even when she is set to marry another, a ninja prince.