Floren

Moomintroll's fair lady friend and admirer. She does fall in love with others sometimes, but returns to Moomintroll before things get too serious. She has blonde hair and sports a golden anklet. She changes color according to her mood, with her baseline color in the books described as pale yellow.

(Source: Wikipedia)

Her Japanese name is Non-Non in the 1969 and 1972 adaptations, Floren in the 1990-92 adaptation, and Snork no Ojousan in all other adaptations (Comics and Books).

(Source: Moomin Website)