Things are not what they seem. Mamoru is not Usagi's destined soulmate. The Senshi's powers are flucating and changing as they become active in their civlian forms. Their memories are changing to reveal the truth hidden by Chaos and its allies.
Two powerful forces release a deadly entity to protect Usagi from the coming evil. But there is something unique about this entity...it loves Usagi/Serenity-hime and will do anything in its power to protect her...even destroy the Earth or kill itself for her...This is the Shi-no-Tenshi...the Angel of Death...