Adapts the final chapters of Volume 2 of the High School DxD Light Novel series .
The episode centers on the high-stakes "Rating Game" to decide the fate of . If her team loses, she must marry the arrogant Riser Phoenix . Despite being outnumbered and outclassed in experience, Rias leads her "pieces"—including the protagonist Issei Hyoudou —into a simulated battle space modeled after their own school. Key Plot Points High School DxD Episode 10
Rias's team successfully eliminates several of Riser's pawns and his "Knight" through coordinated ambushes and Issei’s growing power. Adapts the final chapters of Volume 2 of