Satoka Sumihara is a fictional character from the anime series Schoolgirl Strikers. She is a member of the fifth force, a group of girls tasked with fighting against mysterious creatures known as 'Oburi'. Satoka is known for her serious demeanor and exceptional combat skills. Despite her stern appearance, she cares deeply for her teammates and often acts as a mentor to younger members. Her dedication to her role and her strategic mind make her an invaluable asset to the team, and she often takes charge during critical missions.