Kyouko Irisu is the main character and titular protagonist of the visual novel game 'Irisu Syndrome.' She appears to be a quiet and reserved university student with a mysterious aura. As the story unfolds, her psychological complexities and hidden motives are gradually revealed, making her a central figure in the game's suspenseful and unsettling narrative. Kyouko's actions and interactions drive the plot forward, and her character is crucial in unraveling the dark secrets behind the events of the game.