Sailor Sedna,Sailor Makemake, Sailor Eris and Sailor Quaoar watch Usagi..
Usagi thinks about her past.
FLASH BACK:
I am the guardian of the galaxy; I had never known love,
I wish that I would feel love because it is my mission to defend love.
Cosmos looked for love until one day she found the young prince of earth, Prince Endymion whom she fell in love at the first sight.
Cosmos asked her Star Seed's Guardian Guardian Cosmos which guards the Cauldron to send her to be reborn as one of the soldiers of the Sol Solar System... Queen Serenity approached the Cauldron Guardian and said raise this child as your daughter..
But what Cosmos did not know that Chaos also loves Prince Endymion..
END OF FLASHBACK
Usagi ponders why are her enemies are following her always, she feels that she does not always want to fight the wars started by Chaos.
Minako appears and comforts Usagi...Kakyuu communicates with Usagi via mental telepathy and tells her it is time for her to become Sailor Cosmos
Usagi transforms to Eternal Sailor Moon Sailor Vega, Sailor Kakyuu appears and say it is time for Sailor Cosmos to appear and battle Sailor Chaos, the original Sailor Moon also appears and they destroy the seal on her powers as Sailor Cosmos the powers of the four soldiers swirl around Eternal Sailor Moon and later on her outfit changes the moon symbol is gone and replaced by a starburst and her uniform resembles her first without the boots...Sailor Cosmos detransforms to Usagi and says I don't want to fight anymore! Usagi feels that the aura of Chaos is back.
Sailor Chaos appears and approaches Usagi, and Usagi transforms to Sailor Cosmos and says to Sailor Chaos that she is tired of wars so Sailor Chaos devours Sailor Cosmos and merges into a new being Sailor Milky Way, a soldier that wants to reset the Galaxy and recreate it so that there are no wars the new being, Sailor Milky Way is like Sailor Cosmos but has black hair and white starburst on her uniform she has a staff with a Chalice fused with a Glaive on top...
The Cauldron Guardian approaches Vega and Kakyuu and tells about the situation and tells that they should stop Sailor Milky Way and separate Sailor Chaos and Sailor Cosmos and she says only Sailor Moon, Sailor Vega, Sailor Kakyuu and Sailor Coronis can stop Sailor Milky Way from reseting the Galaxy.
Sailor Milky Way kidnaps Mamoru..
Sailor Sedna,Sailor Makemake, Sailor Eris and Sailor Quaoar appear to the other guardian soldiers of the Solar System and reveal themselves...they were shocked of what happened and they said they were senshi only loyal to Queen Serenity they disliked Neo Queen Serenity...
Sailor Milkyway hugs Mamoru...and says "Let's rule the New Galaxy I will create"..