Resurgence of the Sekiryuutei

When most of the girls decide to break up with Issei, he keeps his head held high and utilizes Ddraig's advice to persevere from the trauma of the Evil Dragon War. He'll come to terms that he doesn't have to be the Oppai Dragon, he just has to be who he always was the Sekiryuutei.

This is not a betrayal story, a break up is not a betrayal