su-san
Nickname given to the doll that accompanies Medicine Melancholy from Touhou. Originates from what Medicine calls suzuran (lily of the valley) in PoFV.
Her official artwork from PoFV depicts her having short blonde hair with a red ribbon, blue eyes, pinkish-white wings, and an outfit with a red top and black skirt (the inverse of Medicine's outfit colors.) However, like with the other dolls in the series, her appearance often varies by artist.
Given Medicine is a tsukumogami, it's speculated that Su-san is actually the real Medicine and contains her soul, the larger main body being a projection, similar to the speculation of Tatara Kogasa's nature as a karakasa obake.