High School DXD(SI)

First, I wake up in my younger self's body. Then, I suddenly awaken a system. Just when I thought things couldn't get any stranger, I gain a sacred gear—one that doesn’t even have a name. After settling into this new world, I began looking for clues about the world I was in. .. its still a shit synopsis but its better that what I had before this Check out my Patreon patreon.com/user?u=24103451