Raizel awakens from his 820-year rest. He holds the special title of Noblesse which is a pure-blooded Noble and guard of all various other Nobles. In an effort to shield Raizel, his servant Monster registers him at Ye-Ran Senior High School, where Raizel learn the simple and also ordinary regimens of the human world with his classmates. Nonetheless, the Union-- a magnificent secret organization with strings around the globe and a goal to rule the globe-- dispatches customized people as well as slowly encroaches on Raizel's life progressively-- which creates him to wield his magnificent power to secure those around him. After 820 years of intrigue, the tricks behind his slumber are finally exposed and also Raizel's absolute defense as the Noblesse starts.