Mami Sakura is a junior high school student who unexpectedly awakens psychic powers. Initially a normal girl, she decides to use her abilities to help others in need. She is bright, cheerful, and energetic, with a lovable and caring nature. However, she can also be clumsy, meddlesome, and somewhat airheaded, often acting without thinking and occasionally stumbling over nothing. Despite this, she possesses a deep sense of empathy and will genuinely involve herself in the troubles of strangers. Her motivation stems from a desire to put her powers to good use, and she frequently rushes to assist people she senses are in danger. As the central protagonist, she takes on mysterious occurrences and confronts criminals, gradually becoming more capable and confident to the point of handling multiple armed opponents. Her closest ally is Kazuo Takahata, her best friend, who designs a heart-shaped brooch that fires small marbles. This device allows her to control her teleportation ability, which activates when a projectile is flying toward her. Her other psychic powers include telekinesis, which she can apply with remarkable precision down to the cellular level, and telepathy, which enables her to access the thoughts and dreams of others. Over the course of her adventures, she learns to balance her extraordinary gifts with the challenges of ordinary teenage life, growing in responsibility and skill.