Five brothers who came from the far reaches of the galaxy have formed the powerful task force "Fifth Renger" to protect Earth from the evil Zorg. Among them, the eldest sister, Godai Sora, is admired by many students for her beauty, gentle nature, and calm demeanor. As "Fifth Pink," she plays a key role in the team. One day, a scientist who developed a new energy source comes under attack by Zorg. If this technology falls into their hands, Earth could be instantly dominated. To prevent disaster, the scientist uploads his research data directly into Godai Sora's mind before erasing all other copies, thrusting her intellect into the center of the new battlefield.