Maaya Awatsuki is a supporting character in A Certain Scientific Railgun S. She is a first-year student at Tokiwadai Middle School and a classmate of Kuroko Shirai. She is a member of the school's swimming club and is often seen alongside her close friend Kinuho Wannai. Maaya possesses a Level 3 esper ability known as Float Dial, which allows her to manipulate the buoyancy of herself and objects around her, making them lighter or heavier. In terms of personality, Maaya is modest, gentle, and calm, embodying the typical demeanor expected of a Tokiwadai student. She is initially reserved and rarely shows strong emotions, but she is deeply loyal to her friends. Her primary motivation stems from her desire to support and protect those she cares about, particularly Kinuho and later Mitsuko Kongou. Her role in the story revolves around her friendship with Kinuho and their eventual bond with Mitsuko, who invites them to join her faction after transferring to the school. Maaya's key relationships include her best friend Kinuho, with whom she shares a warm and steady companionship, and Mitsuko, toward whom she extends a gentle and enveloping kindness. She also shares a classmate relationship with Kuroko and later interacts with Mikoto Misaka, whose influence helps Maaya grow more resilient. Throughout the series, Maaya experiences notable development, particularly during an incident where she and Kinuho witness Mitsuko being attacked. In that moment, Maaya, who had never truly been angry before, becomes enraged for the first time, showing a protective fierceness that contrasts with her usual meekness. Her interactions with Mitsuko and Misaka gradually help her develop a stronger and more determined side, while still retaining her gentle nature. Maaya's ability, Float Dial, is a fluid manipulation power that lets her alter the buoyancy of targets, effectively controlling weight and movement in water or air. This ability is practical for combat and support, allowing her to hinder opponents or assist allies by adjusting physical forces. Overall, Maaya is a steady, kind-hearted presence whose quiet strength and loyalty become more apparent as the story progresses.