Kaito Hirano, a boy with mystery written all over him, and a Kuoh transfer student. At first, not much attention is given around him, a pretty normal student with some friends and a circle of his own.
Rias Gremory thought of this person as nothing but a mere new student. No Magic nor Sacred Gear is sensed on him, but then, suspicion arise when Rias caught a glimpse of an auburn hair with a white mask killing Stray Devils.
What action will Rias and her peerage alongside with her friends take?