Episode 6 (Season 2, NEW)

"Go! Occult Research Club!" is the sixth episode of the second season of the High School DxD anime. It will air on August 11, 2013.

Summary
Issei transfers his boosted powers to Rias who then proceeds to attack Kokabiel but to no avail. Akeno then attacks Kokabiel but to no avail as well. Realizing Akeno is the daughter of the Fallen Angel Cadre, Baraqiel, Kokabiel makes fun of Rias, claiming that she has a habit of taking in weird people like her brother. Angered by Kokabiel's insults, Issei decides to fight Kokabiel as Kiba, Xenovia and Koneko attacks Kokabiel to buy time for Issei to boost his powers. Despite the combined effort of all three, they couldn't inflict much damage towards Kokabiel. Kokabiel then proceeds to reveal that in the Great War in the past, both the Four Great Satans and God died, much to the surprise of everyone persent, especially Asia and Xenovia who were shocked at the revelation. Despite so, Issei strongly states his dream of becoming a Harem King along with Rias' incentive, Issei manages to attack Kokabiel while reigniting his friends' fighting spirit.

Before the fight can continue though, the barrier surrounding the school field was destroyed by a new figure appears in the fight. Naming himself as the White Dragon Emperor, Albion, he proceeds to defeat Kokabiel, negating the self destruct spell on the school. He then takes Kokabiel and Freed away from the field. Glad that the battle is over, Sona and her team proceeds to fix the school while Kiba manages to truly get over his past with the help of his friends as he vows one more time to serve Rias along with her other servants. The next day, Issei and Asia are surprised to see Xenovia appearing in the Occult Reseach Club, wearing a Kuoh Academy uniform. Xenovia then reveals that she has reincarnated into a Devil as Rias' Knight after learning God died and apologizes to Asia for her rude remarks to her in the past.

Issei is later seen playing a video game with his client, who later reveals himself as Fallen Angel Leader Azazel, much to Issei's surprise.

Stats
Original airdate: August 11, 2013

Writer: Tetsuya Yanagisawa

Featured Characters
(Numbers indicate order of appearance. New characters listed in bold.)

Differences between Light Novel and Anime

 * 1) In the Light Novel, Issei did not battle Kokabiel directly, while in the Anime, Issei manages to punch Kokabiel.
 * 2) In the Light Novel, Vali ripped off one of Kokabiel's wings, while in the Anime, he ripped off two.
 * 3) In the Light Novel, Issei and Azazel were playing a racing game, while in the Anime, they were playing a fighting game.
 * 4) In the Light Novel, Azazel play a new game with Issei saying that it's new and that he don't know it, with the latter lose, while in the anime Azazel say that he did some practice for "fight" him
 * 5) In the Light Novel, Issei ask to Azazel who he is after lost the game, while in the anime Azazel reveal himself after win Issei in the game and call him "Sekiryuutei"