Sunao Nako

is one of the main characters of the Hitoribocchi no OO Seikatsu series.

Sunao Nako is generally blunt and straightforward in her demeanor. She usually isn't afraid of the consequences of her actions and is fairly laid-back. Sunao is often seen as a scary delinquent, but after getting to know her, her friends would describe her as a nice and caring person.

Hitori Bocchi is a girl that sits behind Nako who was the first to try to initiate with her in middle school. Being her usual straightforward self, she first responded very cold to the initiation. However, after spending some more time with Bocchi, she started to grow closer quickly becoming close friends. Sunao, in general, tries to support Bocchi in whichever way she can, such as when Hitori wanted to become friends with Sotca or walk home with Aru. This sometimes results in Nako acting like a guardian, stepping in when Bocchi can't. However, despite this attitude, she views her friend as her equal, being helped by Bocchi at various times as well.

She is the first person Bocchi talked to and became friends with.

People say she seems scary at first, but she's actually quite caring and kind.

She is scared of water and can't swim very well.

Her name is a pun to the Japanese phrase "Sunao Na Ko" which means "honest (or direct) child," which correlates with her direct personality.

She has sensitive spots on her back.

Honshou Aru nicknames her "Nakosuke" (-suke is a common male name ending in Japan) for a masculine sounding nickname.

Mainly seen as a delinquent, Sunao Nako usually wears a slightly stern or disinterested look on her face. She has orange-blonde hair cut just above her shoulders and amber eyes. She has bangs swept just between her eyes, and a small tuft of hair sticks out at the middle on the side of her head. Nako has a small beauty mark under her left eye.

She usually wears an orange, woolen trouser with a short skirt underneath it for her school uniform. She also wears medium length stockings and brown shoes.

When at the pool, she wears a short lime skirt with a little white ribbon on her left side. She also wears a white crop top with a green ribbon in the middle.