(April-May of the first year)
The Red Dragon Emperor's Awakening (赤龍帝覚醒 Sekiryūtei Kakusei) is the first story arc of High School DxD. This story arc follows the first two novels of the series, the first four volumes of the manga, and the first season of the anime.
- Issei is killed by 'Yuma' (Raynare the Fallen Angel) and revived by Rias Gremory as a Devil
- Issei tries to perform the devils contracts for humans customers, but is unsuccessful in his attempts.
- Issei meets Asia Argento and helps her to the church in the area and she demonstrates her healing sacred gear.
- Issei is ambushed by Freed at a contract summoning, but survives due to the assistance of others.
- Asia and Issei run into each other the next day and spend the day together.
- Issei leads an assault on the church to rescue Asia, but not before Asia's sacred gear is extracted.
- Issei defeats Raynare and Rias then kills her.
- Rias revives Asia as one of her Bishops.
Part 2: Phoenix of the Battle School
- Rias moves Asia into Issei's house.
- Rias attempts to have sex with Issei but is caught and taken away by Gremory housemaid Grayfia Lucifuge.
- Riser Phenex, Rias' fiancée, shows up in the club room with Grayfia to demands that Rias' engagement to him be moved up, but Rias is against the arranged marriage.
- Grayfia suggests they hold a Rating Game to solve their problems; the winner would be allowed to determine the fate of their engagement.
- Rias has everyone go to her mountain summer house for training in the ten days they have until the match.
- Rias starts falling in love with Issei after seeing his determination to help save her in the upcoming match.
- During the match everything seems to go mostly to plan, until Issei's stamina runs out and Rias begrudgingly resigns to stop Riser from beating Issei to death.
- Issei recovers from his injuries on the day of the engagement party and Grayfia gives him a magic circle card, allowing him to crash the party and face-off against Riser in a rematch—as proposed by Rias' older brother Sirzechs Lucifer.
- It is shown that Issei had sacrificed his left arm to achieve a psuedo-balance-breaker state.
- Defeating Riser by nullifying his immortality with Asia's crucifix and holy water, Issei escapes with Rias on a summoned Griffin. Zeoticus and Lord Phenex cancel the engagement.
- No longer engaged to Riser, Rias shares her first kiss with Issei and moves into his house as well—much to Asia's annoyance.
|The Red Dragon Emperor's Awakening|
|1 • 2|
|Birth of the Breast Dragon Emperor|
|3 • 4 • 5 • 6|
|The Heroic Oppai Dragon|
|7 • 8 • 9 • 10 • 11 • 12 • 13|
|The Legend of Oppai Dragon and his Lively Companions|
|14 • 15 • 16 • 17 • 18 • 19 • 20 • 21 • 22|
|Red Dragon Emperor of the Blazing Truth × White Dragon Emperor of the Morning Star: The True Dragon(s) of the Kuoh Academy|
|22 • 23 • 24 • 25 • True 1 • True 2 • True 3 • True 4|
|1 • 2 • 3 • 4 • 5 • 6 • 7|
|EX • Zero|