Linnea Cross lost her martial arts skills and retired to seclusion after her father was killed in the struggle for the "number one in the world". Three years later, inspired by Ansel Marlow, she returned to the martial arts world and became involved in a conspiracy to connect with the Kōsai. Stellan Pike sacrificed himself to protect Linnea. Therefore, Linnea had a sudden realization of "serving the country and the people", led her army to smash the conspiracy, and went north with Ansel to resist the Kōsai.