Konatsu has cool gold eyes with lashes at the corner and black hair ending at her shoulders with several strands sticking out and matching bangs. She wears a dull orange cap with a beige flap that has gold detail and a section of pale brown fabric in the middle.
Her attire is composed of a dull gold gingham top worn with a black tie and a pair of grey short-shorts. Over this is a short brown trench coat with black and white buttons, two pocket flaps on the left side, and a gingham ribbon tied around the navel. She also wears grey boots with a gold and black piece wrapped around the ankle, and black and gold stockings. She carries a pale brown and gold flower satchel and wears black gloves.
In the anime her outfit was modified. Her top is brighter in color while her shorts became khakis with suspenders and her coat now a shawl. She doesn't wear gloves, and her boots are plain brown. Her cap also changed in shape to that of a Newspaper Boy style.
Konatsu is a curious Idol who gets excited by the prospects of mysterious things. Normally portrays a cool and composed nature- she can be playful and energetic at times if something needs done. For example, when Chinatsu Ryuusekidou was too afraid to bungee jump she teasingly pushed her off of the edge, claiming to have misunderstood her.
- The name Konatsu means "small" (小) (ko) and "summer" (夏) (natsu).
- Konatsu's surname Shinjou means "new" (新) (shin) and "castle" (城) (jou).
- Konatsu is known as the "Japanese Holmes" (after Sherlock Holmes).
- Konatsu's blood type is A.
- Konatsu's birthday is August 20.