Sailor Moon Eternal: The Sequel: A party injury

Ami and Rei are going on a trip to Denver to see Minako, so Mamoru and Mako have to take care of Usagi and Chibi-Usa. Meanwhile, at the party at Rainbow Hills, Usagi gets injured with a broken leg. Will Mamoru have to take care of her, or will she have a broken heart with her injury forever?

(I will do/add some characters featuring that I watch: Glitter Force, Hamster and Gretel, Fireman Sam, and many more.)