Ray Astrea, also known as Sailor Saint Knight, is a holy knight chosen by the holy sword Excalibur. Excalibur transforms the willpower of the holy knight into strength. In other words, as long as the holy knight's spirit is not broken, Excalibur will grant power to its user. The demon Gilgamesh plots to seize Excalibur for himself. Gilgamesh summons five high-ranking demons and corners Sailor Saint Knight. Outnumbered and outmatched, what will be Sailor Saint Knight's fate...? [BAD END]