Chiaki Nanami (七海 千秋), is a participant of the Killing School Trip featured in Danganronpa 2: Goodbye Despair. Her title is the Ultimate Gamer 超高校級の「ゲーマー」 lit. Super High School Level Gamer Chiaki has short, dusty pink hair that slightly curls outwards, though the locks on either side of her face curl inwards. She has short straight bangs split towards the right, a white hairclip resembling the spaceship from Galaga pinned to a lock of her hair. She has sleepy-looking blossom pink eyes. She wears a white button-up shirt with a dark teal-gray front placket. She wears a light pink ribbon tied around her neck in a bow, with a pale beige pleated skirt. On top of this, she wears a one-button dark teal-gray hooded cardigan with gray horizontal lines running across the hem and sleeves, her former school symbol on the chest pocket. Her hood has pointed ears on the top and two pink eye-like markings on the front, resembling a cat. She also sports black thigh-high socks and light pink Mary-Jane style shoes with white soles. Chiaki is often seen wearing a pale pink backpack with a white pocket, a plush cat head sewn at the top with a white ribbon tied in a bow at it's base. She is seen wearing a ruffled white bikini with a ribbon and ruffled pants during Chapter 2, which also reveals that she has a beauty mark on her right breast. Chiaki normally has a quiet and sleepy disposition, but she becomes a lot more lively when discussing games and concentrates hard when playing. She has a number of unusual habits, such as dozing off while playing games and taking long pauses during her conversations to think about everything she wants to say. She sometimes even sleeps while standing and forgets to breathe when she's playing games. She also quite often uses gaming terms and references.

Chiaki Nanami:laying in her bed playing games on her Nintendo switch