When Tuxedo Mask reveals information of the Mystical Silver Crystal to the public to speed up the search for it, the mad rush brings a wealthy businessman to ask for Rei's protection of his gem that seems authentic. Meanwhile, Usagi fights her feelings for Tuxedo Mask after being warned by Sailor V that he is the enemy and gets in big trouble for helping him.

Usagi runs away from home and eventually winds up with Rei at her shrine. There, Luna sees a connection between the legend of Princess Kaguya and the real Moon Kingdom. Meanwhile, Zoisite formulates a plan to destroy all princesses under his hopes of defeating the Princess of the Moon.

Usagi goes on a mission to recover Minako's stolen jewels. Meanwhile, Ami has tension with Naru but won't tell the others why.

Ami is jealous of Naru's relationship with Usagi. Meanwhile, Youma are causing people to disappear in order to steal their energy.

Usagi and Mamoru's relationship has been prohibited since their previous existence, but the two of them- vowing that things ""won't be like last time""- begin their love anew. Given Usagi's excessive zeal, the other senshi cannot bring themselves to strongly oppose them. Yet Sailor Venus, knowing full well the horrors of their relationship, refuses to forgive it. Whilst she considers methods of stopping them, in front of her materializes Zoisite. With the same desire to pull the two of them apart, Zoisite makes Venus a proposition.

Aino Minako (Sailor Venus) lets Rei in on an important secret. While Rei, having been told such a secret so suddenly, is unable to hide her shock, she doesn't have time to lose her bearings. Their enemies are growing stronger by the minute. As Rei and the rest are staying vigilant, the Dark Kingdom's ruler, Queen Beryl, having desired Endymion since their previous existence, has finally appeared in front of him.

A life-taking stone has been implanted into Mamoru's body by virtue of Queen Beryl's trap. The more he loves Usagi, the closer he creeps to death.

Knowing this, Usagi's anger rises. And with that Usagi changes... Having realized this change, Mamoru is determined to meet Usagi, regardless of the stone's existence within himself.

His grace period is until sunset, and if he doesn't return Queen Beryl will take his life.

Rei and Minako antagonize over their reactions of their previous life.

Rei asserts that Minako- having never awakened her senshi powers- has no qualifications to fight, but that's because she has something in her mind.

Meanwhile, coming to the conclusion that no matter how much she hopes it would happen, she'll never have Endymion's heart, Queen Beryl at last comes to the decision to take the Princess's life.

Venus finally finds success in awakening her senshi powers and defeating the youma. And she decides to be operated on.

Her friends the senshi, believing the operation will work out fine, plan a party. With a smiling face Minako heads toward the operation's inspection... Even though the odds are slim, Minako decides she's going to do the operation.

And so that day comes a calling.

The five of them beat the strongest youma; Naru, Motoki, and the other victims have returned to normal and the town's peace has been restored

After school Usagi is walking home to find Mamoru standing on the other side of the bridge, they walk up to each other and he hugs her, then she starts crying out of happiness.

later Mamoru kills Kunzite and turns into Dark Endymion meanwhile the other Senshi are fighting an Younma and some how they end up get attacked by Endymion. whilst the other Senshi are fighting the Younma Mio gets killed by Endymion and after the other Senshi were attacked he aims at Usagi and hits but Usagi turns into sailor moon.

After sailor moon henshins (not exactly) she has a sword and Mamoru tells her to attack sailor moon looks at him and decides she will do so.

in the end Usagi kills Endymion and whilst shes get her run up Makoto, Ami and Rei yell at Usagi not to do it but Usagi doesn't listen because she knows what she must do