After
SnowBuni, her sister
HoniBuni is the character seen most often in the Sylvalagi continuity.

Previous model sheets have indicated that her real name is Stacey Lynn Sylvalagi. This name sounds suspiciously modern and Western; in all likelihood it is a pseudonym that she adopted during her travels in one of the English-speaking continents.
In height and build, she is practically identical to SnowBuni (both being short, petite, and buxom). Where SnowBuni has full-bodied golden-blonde hair, though, HoniBuni has straight black hair.
Also, where SnowBuni is good-natured, HoniBuni is usually sour and cynical.
Both girls are veterans of numerous internecine wars in the Sylvalagi continuum, and both have led their own combat groups. Here is where the similarity ends, though; although both girls were decorated for their actions, HoniBuni has elected to leave her masters and form her own renegade splinter group. As SnowBuni is still indentured, the two often find themselves on opposite sides of military confrontations.
EDIT: Yes, this illustration is a little off-model, but it is still one of my favorites (captures her bad mood and aggressive spirit). I will post an update sometime soon.