4.0

Sailor Moon makes the ultimate sacrifice after losing everything, her friends, her family, and her life. But Chibi-Chibi has a secret power that may help Sailor Moon to conquer her enemies once again!

Time travel muddies up the plot AGAIN. Seriously, how many time travelling plot holes can there be before the structure of the story falls apart?
I really loved how the Sailor Guardians from previous books are all united in this last book, and we see some other side characters make an appearance along with the new folks. I really grew to love Princess Kakyu's character, because she is actually helpful, honest, and generous; instead of lurking around, keeping secrets, and not actually doing anything useful like the stupid Star Lights.