Imperial Guard in Ming Dynasty

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When Yeongrakje of the Ming Dynasty fell seriously ill, Yi Yi, the deputy commander of the Geumuiwi, ​​embarked on a mission to escort Dae Lama to the palace to pray for the longevity of the emperor. However, during the mission, Dae-Lama disappears due to an attack, and Yi Yi finds out later that all of this was a trick of the Geumuiwi commander's discipline...