Usagi Tsukino, better known as Sailor Moon, faces a constant battle to balance her heroic duties with her everyday life. Alongside her beloved Mamoru Chiba and the other Sailor Guardians, she investigates the suspicious and alarming transformation of students at the prestigious Mugen Academy. As they delve deeper into the mystery, they encounter three strange individuals: race car driver Haruka Tenou, skilled violinist Michiru Kaiou, and a seemingly frail yet enigmatic girl called Hotaru Tomoe. Their investigation soon becomes complicated when they meet two new planetary guardians with their own hidden motives. Despite their murky allegiances, the group must band together to take on the malevolent entity known as Pharaoh 90. As the action intensifies and the stakes escalate, Sailor Moon and her allies must fight harder than ever to protect humanity from destruction.