used the Silver Crystal to give her daughter (and others) another chance at life by reincarnating them in the future, hoping that Endymion and Serenity would be able to find happiness together in their new lives. In the live-action series, it is Princess Serenity herself who destroys the Moon Kingdom with her uncontrolled uses of the Silver Crystal when Endymion was killed during the war between them in the past. Usagi occasionally takes the form of Princess Serenity during the series, often at climactic moments when more strength is needed than Sailor Moon can usually access. Usagi discovers her identity as a princess in act 9 of the manga, episode 34 of the original anime, and act 25 of the live action series. At climactic moments, Serenity sometimes gains a pair of functioning angelic wings, such as the final episodes of SuperS and Sailor Stars. In the manga, Takeuchi depicts Usagi with white, yellow, and even pink hair, but Princess Serenity is almost always depicted with white hair. In the original anime, Princess Serenity is blond. In the live-action series, Serenity has black hair and brown eyes, just like Usagi, and she wears her hair straight down rather than in pigtails. While other adaptations of Sailor Moon depict Princess Serenity as gentle and similar to Usagi, the live-action series depicts Princess Serenity as colder and more severe. When she is reawakened and possesses Usagi, her singleminded infatuation with reuniting with Endymion causes her to callously disregard the safety of the other guardians and remorselessly strike down her enemies, not even caring if the Earth is destroyed. Princess Sailor Moon Princess Sailor Moon is a powerful combination of Sailor Moon and Princess Serenity that only exists in the live-action series. She is introduced when Usagi is possessed by the spirit of Princess Serenity. Princess Sailor Moon is not the same person as Usagi and they have completely different personalities. Princess Sailor Moon shows no remorse for the fate of the Four Kings of Heaven and she refers to Mamoru as "Endymion" rather than his civilian name. She is always angry, and has no misgivings about causing death or destruction. In one act, Usagi's friend Naru accidentally gets too close to Princess Sailor Moon and has to be hospitalized as a result. During a confrontation with her current self as Princess Sailor Moon, Serenity tells Usagi that she would have no qualms