Kikuri Hiroi

Kikuri Hiroi is the bassist and vocalist of the band SICK HACK. Despite her outgoing and party-loving personality when under the influence of alcohol, it has been described as masking a more depressive and anxious personality, similar to Hitori Bocchi's in high school. When sober, Kikuri can be a panicky and reclusive person.
As a bassist, she is considered a talented musician and often serves as a mentor to Hitori Bocchi. Despite her problematic behavior due to her frequent alcohol consumption, she cares deeply for her bandmates. Her character has been described as complex, with the series addressing her alcoholism in a way that takes her seriously as a character.

Kikuri has long, dark pink hair tied back in a side braid with a dark brown ribbon and magenta-purple eyes. In the manga, she wears a single hanafuda earring in her left ear.

She wears a simple green dress with a black and white jacket over it and a pair of geta that leave her feet exposed. In the manga, the lower half of her dress features numerous Lycoris radiata/spider lily flower patterns.

She also wears black nail polish on both her fingernails and toenails and is often shown with sharp teeth. In the manga, she has a tattoo resembling a tribal circle on the back of her right hand.