Highschool DxD Crimson Demonic Dragon. Vol 1- The Birth of the New Red Dragon Emperor

I, Issei Hyoudou, despite being the youngest of three children, have had a fairly quiet life along with my parents, siblings, grandparents, and friends. Or so it was until I started having strange dreams about a huge red dragon with blazing flames since I was three. And, at months of turning five, someone in my dream made me promise to her that when I turn five I find the proper place, and I was on my own, that would be the right moment to awaken whatever is inside me. And so I did, with no idea of what that could unleash…