A Guardians of the Video Game parody of Highschool D×D. As Ion Hyoukai, the Main Character, was assigned to collect traces of Uranium around the nuclear plant nearby his old high school building, a high level scientist and part-time professor, Lèas E. Grimory, acommpanied him until his near death experience caused by the wielder of the Arsenic power. Leas heals him, and in return, recruites him in a secret company consisting of forensic investigators, along with his classmates(some of them being part-timers like him), as an order from the Dean. As he becomes part of the Grimory clan, he now has to protect his new clan and his hometown from the most dangerous Atomic Power that caused death among the majority of the population. As Guardians, Cheat, Patch and Publi, along with Mode, joined their Department's quest, they soon have to face the consequences of this Game's System and the history that caused it to change the male Guardians' gender and their perception towards the Game itself. (The image for the cover doesn't belong to me, so credits to the artist.)
10 parts