Prologue: Two Cats, a Princess, And a Perverted Dragon

Issei has just defeated Vidar and has now qualified for the main stage of the Azazel Cup. He has also proposed to 8 girls and at the night after the party had a little celebration in Issei's room. in which the Sekiryuutie has finally lost his virginity. But right now things are about to turn as he will now be sucked into another world