Hiyoko Saionji, is a student of Hope's Peak Academy's Class 77-B, and a participant of the Killing School Trip featured in Danganronpa 2: Goodbye Despair. Her title is the Ultimate Traditional Dancer lit. Super High School Level Classical dancer She, along with Class 77-B, return in Danganronpa 3: The End of Hope's Peak High School to explore their school life leading up to The Tragedy.Hiyoko is a short girl who appears extremely young. At first sight, Hajime remarks that her voice and her appearance don't give off the air of a high schooler at all. She has long blonde hair that is generally seen tied into thick, curved twin tails with two yellow-green ribbons, a white cat face accessory pinned in the center. Her bangs are curled and swept to the right, with two locks of chin-length hair curling outwards and framing her face. She has large, round, pale orange eyes. Her clothes consist of a traditional orange furisode kimono with a floral print pattern that consists of white and yellow blossoms, and a yellow-green obi sash printed with tiny, darker yellow-green cat head silhouettes tied around her waist and secured with a bow at the back. Her footwear consists of zori with orange straps.Hiyoko's cute appearance, voice, and (initially) her way of talking give off the impression she is innocent and childlike. However, in her introduction alone, it is revealed that she is very direct and cruel with a side of malice. She squishes ants while telling Hajime Hinata that they make a satisfying popping noise if done correctly, and even invites him to join her. Later at the beach, she goes around trying to step on and trample the crabs, laughing as if it were just child's play, showing an alarming fascination with it. She also stomps on and tear out flowers for her own amusement, explaining that she likes to destroy pretty things. While not violent towards people presumably due to her diminutive stature,Hiyoko often shows similar mean behavior towards them.

Hiyoko Saionji:squishing ants outside having fun