Yuki, Kaori

Kurai, the last Princess of Gehenna, agrees to marry Lucifer in exchange for a potion that will revive her beloved Setsuna, but before she can save her friend she must battle her way out of the depths of Hell.

Setsuna returns to Earth to protect his human body and must escape the Angel of Fire, who is willing to fight for Setsuna's soul.

Setsuna finds himself sitting in judgment of the angel who condemned his soul to a life of suffering and must chose between his thirst for revenge and his need to find his sister.

Setsuna has only seven days to find his sister Sara in the afterlife, but his quest may be cut short by the Guardian of the Hellgate.

While he deals with his sister's death and the imminent destruction of Tokyo, Setsuna learns an evil angel is trying to control heaven.

Setsuna and the high angels learn all the secrets of God, and Setsuna tries to prevent Sara, who is possessed by the angel of destruction, from destroying the Tower of Etenamenki.

The battle between the angels and demons reaches the Tower of Etenamenki, where Setsuna, Rosiel, and Sandalphon struggle to reach the Tablet of Heaven--the key to unlimited power--to save the world or destroy it.