Mamoru: I have no experience with child care and no previous connection to the family but since I’m right here I’ll volunteer to take this baby in

“We need to be very careful to avoid attracting the attention of the Sailors.”

Yeah, leaving a yard full of unconscious infants is not conspicuous

“Mamoru and Usagi’s Babysitting Mayhem”

This title tastes like “quirky slice of life” with a “wacky family misadventure” aftertaste