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.
Prime Minister of Heaven Sevothtarte's plans to cement his control over the astral domain end in ruin. At the show-trial, the testimony of archangels Jibril and Raphael reveals his evil machinations, turning public opinion against him. Then Setsuna and the rebels' assault on the courtroom results in chaos and a shocking revelation: Sevothtarte's true identity, along with his relation to the Sandalphon project! With all other forces in disorder, Rosiel is now poised to take control of Heaven, with a new and mysterious ally at his side. But how will the emergence of Sandalphon alter the balance of power?