Seekvaria cerita

issei a lonely boy because he had nothing special like his siblings the only happines he had was a deck of card of creatures he could see that others can't and it was the only thing that keeps him going but one day he decited do leave and meet some people hu he was adopted by and they care for him but his past reaches up to him but he doesn't want anything do to with them anymore and continue living his new life with his new family but events will force his hand do protect the ones he cares for

Seekveria Agares una Demonio de carácter duro y frió conoce a un chico llamado Issei Hyodou un joven humano de carácter muy opuesto al suyo, a pesar de ser fría y cruel con el. El jamas se aparta de su lado y siempre la cuidara sin darse cuenta de que hallo a su Caballero Guardián de Hierro.