Sagiri Kirishima is a main character in the Ukagaka (also known as Nanika) universe, a series of desktop mascot applications from Japan. Sagiri is often depicted as a gentle and supportive presence, acting as a virtual companion who interacts with users on their computer desktops. She is known for her calm demeanor, intelligence, and willingness to help, making her a beloved character among fans. Sagiri often plays the role of an assistant, providing advice, reminders, and friendly conversation.