Tsubaki has fair skin and long salmon-colored hair placed into two neat pigtails held together in two bird-like hairclips. She wears a white long-sleeved seifuku with the collar and the cuffs being brown alongside a dark brown ribbon on her chest. She also wears a short brown pleated skirt, white knee-length socks, and rusty orange-tipped uwabaki. Tsubaki has dark orange eyes, although her right eye is bandaged, as well as her left arm being in a sling and cast. Tsubaki has sleeping problems.