El Dios de High School DxD, al borde de la muerte durante la Gran Guerra, utiliza su último aliento para hacer un llamado desesperado. No a sus ángeles, ni a los arcángeles restantes, sino a una deidad de otro universo. El sistema, tardando años en acumular la energía necesaria, finalmente logra su objetivo, arrastrando a la fuerza al verdadero y original Dios del universo de Hazbin Hotel hacia un mundo que no es el suyo. Atrapado en un universo ajeno, el Dios de Hazbin Hotel no puede regresar a su creación. Con su característico hastío ante la burocracia, se enfrenta a un Cielo disfuncional y a unas facciones en constante guerra. Sin embargo, este no es un dios reencarnado, sino el ser original, lo que significa que posee un poder y una comprensión que las deidades de este universo ni siquiera pueden concebir. Él debe lidiar con las consecuencias de su invocación y con las nuevas amenazas cósmicas que el Dios de DxD nunca pudo prever.

Con un pasado que no recuerda y una vida de mierda en el infierno, nuestro protagonista tratara de recuperar sus recuerdos, saber quién era el antes para así abrir las puertas del paraíso. pero por ahora desatará el caos tanto en el infierno como en la tierra.

Every Year, Heaven sends Exterminator Angels to slaughter Demons and Sinners to control Hell's overpopulation. However, Charlotte "Charlie" Magne, the daughter of the Devil himself, desires for an alternative solution that doesn't involve mass genocide of her people. But, how can she succeed at rehabilitating Demons and Sinners when practically everyone in Hell (even her own father) don't believe redemption is possible?? Despite support from her friends..Charlie is beginning to lose hope. But, just when it seems her dream may truly be dead..Hell receives a new arrival. a very ALIVE arrival that may change everything. ..for better, or worse.

Izuku Midoriya was an odd case, even by Hell's standards. No one new about him until he started making a name for himself in the hierarchy of Hell. There were few things he believed in but if there was person he had faith in, it was Charlie. Her and her dreams that seemed rather fantastical but endearing in a way. So he will do whatever it takes to support her and her dreams. Even if it meant getting his hands dirty. (I own nothing in this except the story. All Hazbin Hotel and Helluva Boss characters and pictures are owned by Vivienne Medrano and all My Hero Academia pictures and characters belong to Kohei Horikoshi.)