Heaven is in chaos. The Seven Mortal Sins, demons from Hell, have pushed forward and are spreading a plague of corruption, with Lucifer and the other envoys of the underworld extending their influence. In response, seven voluptuous angels known as the Seven Heavenly Virtues are sent down to Earth to find someone who could become the true messiah and strike back against Hell. Racing against time, they come to see just how widely the Sins' plague has already reached. Set in the same timeline as Sin: Nanatsu no Taizai, this short-format ecchi fantasy runs for ten episodes.