When he awakens, he discovers that he has reincarnated as a demon, and from that day Issei works as a servant of Gremory Rias, a high level demon girl who happens to be the most beautiful and popular in school.
High School DxD Characters:
He is a wicked, has a habit of daydreaming, and is well known for being creepy in academia, but also hard working. His first girlfriend is killed suddenly, but Rias Gremory saves him and brings him back to life as a demon of his own clan, making him a member of the Club of occult research.
A Madonna of the academy, Issei teacher, and a woman admired by people. His true identity is the crimson-haired princess ruin, the heiress of one of the highest-ranking families of the devil and famous, the Gremory. She is registered as an exchange student, but the truth is that it has the power in the academy, and acts as the president of occult research club, consisting of demons under his command.
She is the second in command in the Gremory clan, known as the "priestess of thunder." She is vice president of occult research club, and its range is the Queen. It's a beautiful girl who is second in popularity after Rias. Normally she is very nice and often says "oh" or "Ufufu". It is surrounded by an aura of mystery and once she enters battle becomes a sadistic super-class.
She is a beautiful sister Issei met in the city. She's a sweet girl who has a heart "Sacred Gear" (Sacred Device), "Healing Twilight" (Twilight Healing) in her body that can heal the wounds of humans, angels, fallen angels and demons alike.
A girl who is a lesser degree of Issei, she is the school mascot because of its good looks loli. Being the "tower" Rias, which boasts of extreme physical strength and defenses. It's not the talkative type, is more of a cool guy, and being the one in the group that gets along with Issei.
He is a gentle swordsman, and his rank in the occult research club's Horse. Issei friend calls himself, but he looks good, intelligent, and has a very nice personality, so it is an object of admiration to all female students, making it look like Issei an enemy (without reason).
High School DxD Trailer~~~