Ayuta Kisaragi is the protagonist of the manga series 'Abara' created by Tsutomu Nihei. As a 'White Gauna,' Ayuta possesses unique abilities that allow him to transform and battle monstrous entities threatening humanity. His mysterious past and connection to the Gauna drive much of the story's intrigue. Ayuta is characterized by his stoic demeanor and determination, often placing himself in danger to protect others. His role is central to the narrative, as he uncovers secrets about his own identity and the origins of the Gauna.