She is the Vice President of Hope's Peak Academy's Student Council.
Kotomi has yellow eyes and long red hair, with some strands flaring out rather dramatically. She wears a white headband and the standard uniform of Hope's Peak Academy.
Kotomi appears to be quite impulsive and possibly short-tempered, as well as protective of her friends, as she quickly reacted with notable anger when the Student Council was threatened with a killing game.
Kotomi and the rest of the Student Council were summoned to Hope's Peak Academy's old building by Junko Enoshima late at night. When Mukuro announced they would kill each other, Kotomi angrily rejected the idea. Sōshun Murasame tried to calm Kotomi and the rest of his fellow Student Council members down, and Mukuro shot Kotomi, who died instantly.
It's indicated that Kotomi was close friends with Ryōta, as he was shown to be perfectly willing to murder Mukuro to avenge her death.
- Her surname Ikuta (生田) means "fresh rice paddy".