RIAS GREMORY S VIRGINITY BELONGS TO ME! Issei is finally beginning to adapt to his new life as one of the beautiful Rias s demonic servants. Just as things start looking up for the perverted high schooler, however, a cocky pretty boy named Riser arrives, claiming to be Rias s fiance! To save the prez from a marriage she doesn t want, Issei and the other members of the Gremory Familia will have to battle Riser s team. Even with the mighty Boosted Gear at his disposal, can Issei really win against a guy who s said to be immortal?