Shu He, a seventeen-year-old girl from Earth, accidentally transmigrates into Moe Academy. Her true memories erased, she lives as an ordinary student, unaware that she is the granddaughter of Grand Elder Pika Qiu and the hidden Princess of Nya. When she first arrives at school, her "amnesia" and Earth origins arouse the suspicion of Miyayaxing, the Wisdom Star. His repeated attempts to read her mind are disrupted by the rock music and mathematical formulas in her head. After Uke Nana warns them with an ice spike, the four go from enemies to friends, forming Moe Academy’s F4 and sharing everyday school life. Meanwhile, feelings quietly blossom between Shu He and Miyayaxing as they bicker.
At this time, the Moe Knights are plunged into crisis after the previous Ten Star and Flame Star leave the group, and the forces of darkness are poised to strike back. The new Flame Star, Yan Wang, is reborn through fire and, with Shu He’s warm encouragement, finds his way out of confusion. The two form a deep bond. When the Dark Archives X appear, Miyayaxing is struck down and vanishes after recklessly reading them. Grand Elder Pika Qiu is forced to reveal the truth about Shu He’s identity: her parents sacrificed themselves fighting the forces of darkness, and she was sent to Earth to protect the royal bloodline. As Shu He breaks down in tears, Yan Wang silently watches over her. Before leaving, Pika Qiu secretly entrusts Shu He to Yan Wang, speaking with him behind a protective barrier and asking him to keep her safe, while he himself sets off on a perilous mission to carry out his ultimate task. Yan Wang swears in the name of the Flame Star to protect her. But Shu He’s mission as the Princess of Nya and the vortex of the dark forces’ conspiracy are only just beginning...
