The angel Alexiel loved God, but she rebelled against Heaven when she saw how disgracefully the other angels were behaving. She was finally captured, and as punishment sent to Earth to live an endless series of tragic lives. She now inhabits the body of Setsuna Mudo, a troubled teen in love with his sister Sara. Setsuna's misery mirrors the chaos among the angels, and their combined passions threaten to destroy both Heaven and Earth.
With just seven days to find his beloved sister Sara in the afterlife, Setsuna goes to hell, only to find himself sitting in judgment of the very angel who condemned his soul to life after life of suffering. But the only way out of the pit is through it, and how much time can Setsuna waste on revenge? Meanwhile Heaven is falling apart as assassins move in to murder God's highest ranking angels! Will there be a universe left when-and if-Setsuna gets out?