Usagi goes from village darling to castle clown, but that's not going to stop her from doing her best! She's going to get her man and become a ninja, and not even two super-skilled shinobi beauties can stop her!

Usagi is the granddaughter of the leader of a prestigious ninja village, but she's such a klutz that she's never made it out of the kiddie class. Frustrated with Usagi's lack of progress, her grandfather sends her to marry Lord Hanzo and have lots of ninja babies. But the lord has no interest in her or her childbearing potential!

During their search for Mamezo, a downpour forces Usagi and Hanzo to take shelter inside a cave. Though the storm and a dark cave provide a romantic backdrop for the loving couple, something sinister interrupts them--a poisonous ninja star that incapacitates Hanzo!