Igarashi is a short young adult woman of a relatively slender build and is often confused for a child. Because of this, she gets treated like one which annoys her. She usually has her shoulder-length green hair tied in a ponytail and forest green eyes. She can be seen in a suit in the office area. From the moment she met her senpai Takeda, she gradually gets annoyed at everything he does and says. Takeda annoys her all the time with the things he says, his laugh, his size, and the way he pats her head. However, in time her feelings for him started to be romantic, although she doesn't want to confess it to herself.