Natsumi Ohashi

Natsumi is a teenage girl that has long maroon hair and red eyes. The anime portrays her with a cat-like mouth. She appears to be the shortest out of her friends as she stands slightly shorter than Akari.

Natsumi typically wears a school uniform similar to Akari's; a light blue sleeve shirt with a blue medium bow, a dark blue skirt, brown shoes, and white and blue legwarmers. Her fingernails are manicured and painted in a solid color, usually either pink or red. She also wears a pink scrunchee on her right wrist.

Natsumi is portrayed as a sweet girl with an extroverted and bubbly personality. Often sporting a smile on her face, Natsumi is someone who enjoys doing fun activities with her friends whether it is visiting cafés to try popular dishes or doing karaoke.

Natsumi appears to be friendly to everyone she interacts with, even with acquaintances like Jirō and Sadaharu. If she is not particularly familiar with someone, she would often call them by a nickname such as "Glasses-kun" for Sadaharu and "Virgin-kun" for Jirō. She appears to be a bit of an airhead as she called Jirō by this nickname while speaking to him despite how obviously rude it was and showered Akari with praises for always giving her compliments but not doing the same for Sachi who had complimented her as well. Natsumi also cares deeply for the well-being of her friends and makes an effort to give appropriate advice or to provide comfort when they are in desperate need for it.

Compared to Sachi, Natsumi is notably less mature in terms of her personality and actions. For example, when she declared that she was going to help Akari to get Jirō to fall in love with her, Natsumi used a lock of her hair as a mustache and pretended to be a detective that was going on a mission. Natsumi also has a habit of referring to herself in third-person, which is usually associated with young children or people with childish personalities.

Natsumi does not appear to be academically successful, as she stated that she was in danger of failing and became the class's PR person so that she could boost her grades.

Little is known about Natsumi's background aside from the fact that she has been friends with Akari for at least two years prior to the start of the series and that she has a boyfriend named "Ryō" who attends a different school from her.