True Red Dragon God of Domination, Destruction and End in Monster World

{Highschool DxD x Monster Hunter} After Issei saved Rias from Riser, he was betrayed by his lover and master Rias Gremory resulting on killing him including his only family and sister figure Asia. He sought vengeance on her, but he was given a new life by Dragon God of dreams and Illusion, Great Red. He is sent to ano...