Ichiban Ushiro No Daimaou

in the 30th century a.d., in a world in which magic exists, 100 years have passed since the human race won a war against the devil king. even though the war caused many sacrifices, slowly but surely civilizations began to rise again. one day, a virtuous child named sai akuto (“worst evil”) is adopted from the orphanage he's lived in ever since a witch quietly left him at the church as a baby. five years later, akuto passes the test to enter constantin magic high school. but after arriving and taking the vocational aptitude test, akuto receives surprising results: examination numbers: number 021 name: sai akuto future occupation: the devil king