Highschool DxD Longinus 13 Truth Will

I, Hyoudou Issei, am a second year high school student, the only child of Hyhoudou Gorou and Hyoudou Miki, my age is comparable to the years I spent being a healthy teenager (peek) with Matsuda and Motohama. And suddenly I got a girlfriend!? Sorry but that's a bit suspicious, I've been walking a bit of a deviant path since childhood since adulthood so I'm ugh kinda feeling happy. Before you guys I probably already had a girlfriend, that's how it should be, but as I suspected, why-- I was killed by my own girlfriend!? I have studied martial arts and swordsmanship since childhood, encouraged by my parents who loved me very much. Doing various ways to defend himself to stay alive but it seems he still fails, wow it turns out he's not human. What black wings! Fallen angels!? Did the world become fantasy before I knew it I still haven't done anything! Is there no way for me to survive? God in this world has answered my prayer!? My parents always told me to believe in God because he always gives trials according to the capabilities of his creation, even though I wondered why God because our family history has belief in Japanese Gods. And the one who saved me was the most beautiful girl in my school, Rias Gremory-senpai. I was told the shocking truth of him not being God but the devil. "You have been reincarnated as a Devil. Be my slave!" My prayers were answered even though it was the devil, I believe this is the path that God gave me. So I will find a way to say thank you Captivated by her beauty and kind heart, my life as a reincarnated Devil begins! I never imagined in my life that I might fall in love!? So my Fantasy, Comedy, Love and Adventure battle at the Academy begins here with aggression and full of worldly desires! And the search for truth about the destiny given by God.