Naughty 'N' Nice
Protect Chibiusa! Clash of the 10 Warriors
Chibiusa wo mamore! Ju senshi no daigekisen
"Chibi-Usa leaves the house after being scolded by Usagi. Roaming the streets alone, Chibi-Usa is overcome with sadness and begins to cry, which draws the attention of Rubeus and the Four Spectre Sisters." (source)