Also known as: スーさん
Fan nickname given to the doll that accompanies Medicine Melancholy from Touhou. Originates from what Medicine calls suzuran (Lily Of The Valley) in PoFV. The doll doesn't actually have a name canonically.
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.