Issei Hyoudou has just graduated from high school and is now head to Saint Lucifel Academy. During his first day he is branded as a pervert. So he became the most hated person at that school. But to attend the university wasn't the reason he came. Issei actually came to join ExE. A secret organization just formed by the maou to handle crimes that the DxD either can't handle or something to keep secret. Up on arriving Issei skipped three ranks and became a specialist