Character from Danganronpa 2: Goodbye Despair. Her title is Ultimate Gamer (超高校級の「ゲーマー」).
She has flipped pink or brown medium hair with a hairclip, and pink eyes. She has medium to large breasts. She wears a pleated brown skirt, black over-kneehighs, a pink neck ribbon, and a black and white dress shirt that is tucked in her skirt. She has a hooded jacket that's shaped like a cat hood and she carries a pink backpack, that's shaped like a cat bag.
As the Ultimate Gamer, she loves video games of all kinds, and playing so many games has given her a wide range of general knowledge. Because of this you mostly see her holding and playing on a handheld game console. She's playing Galaga Omega for the most time of the day and wears a hair ornament dedicated to the game. When she's not with Hinata or Nagito, she's sometimes seen with Monomi by her side.
In Danganronpa 2: Goodbye Despair she is actually an artificial intelligence. Her creator and "father" was Fujisaki Chihiro, the Ultimate Programmer from Danganronpa: Trigger Happy Havoc who programmed her A.I. for the Neo World Program.
Danganronpa 3 reveals her to be based off of an actual Nanami Chiaki, who was part of Class 77-B and was executed by Junko to push the rest of the class into despair. In this show she's wearing the Hope's Peak Academy School Uniform with a brown jacket and brown skirt. She also wears loafers instead of mary janes.