Issei attempts to fulfill devil contracts. After several failures—including a strange encounter with a man named Mil-tan—he successfully assists a foreigner named Susan with a love confession.
Rias Gremory puts Issei through a rigorous physical training regimen to increase his base stamina, as his "Boosted Gear" relies heavily on his physical health. High School DxD Episode 6
The rogue fallen angel Kokabiel reveals a devastating secret: both the Biblical God and the original four Satans died in the Great War. This revelation causes Asia to faint and Xenovia to face a crisis of faith. Issei attempts to fulfill devil contracts
In the High School DxD franchise, "Episode 6" refers to several pivotal turning points depending on the season. Each one marks a transition from training and domestic life into high-stakes supernatural conflict. The rogue fallen angel Kokabiel reveals a devastating
Just as the battle with Kokabiel reaches its peak, Vali Lucifer (the White Dragon Emperor) appears, effortlessly defeats Kokabiel, and takes him back to the Underworld.
Watch the intense conclusion of the Kokabiel battle and Vali's first appearance in this full episode recap: