Chibiusa Tsukino, also known as Sailor Chibi Moon, is a fictional character from the anime series Bishoujo Senshi Sailor Moon. She is the future daughter of Usagi Tsukino (Sailor Moon) and Mamoru Chiba (Tuxedo Mask), hailing from the 30th century. As a key character, Chibiusa travels back in time to seek help from the Sailor Guardians to save her future kingdom, Crystal Tokyo. Initially portrayed as a mischievous and stubborn child, Chibiusa grows to become a brave and loyal ally, developing her powers as a Sailor Guardian throughout the series.