Redemption Of Darkness: Male Kamen Rider reader x Highschool DXD

You are a normal 17 year old who excels in Different forms of Martial Arts, his studies in his highschool and etc. One day, You find a strange deck sitting in your room. With it, you know the mantle of Kamen Rider Ryuga, fighting mirror monsters and riders alike. Unfortunately, Kanzaki felt that Ryuga would overthrow...