Säsongen 4 av High School D×D startade på AT-X på mardi 17 avril 2018, Detta är den pågående säsongen, den har bara ett avsnitt för tillfället..
Follows Issei Hyōdō, a dim-witted, lecherous second-year high school student who is killed by a girl on his first date ever. Issei is reincarnated as a devil, and from that day forward, he serves as an underling of Riasu, a high-level devil who is also the prettiest girl on Issei's campus.