Miku is the central protagonist of the anime, a seventeen-year-old girl who joins the tag team known as the Pretty Four as its newest member and eventually becomes its headliner. She has a deep passion for the sport of Neo Pro-Wrestling, a future form of professional wrestling that incorporates armored suits and enhanced moves. Her love for the sport was sparked in childhood by watching her idol, Aquamarine, whom she continues to regard with great respect, often addressing her with the honorific "sama." Miku is initially portrayed as flighty and energetic, but she possesses a genuine inner fire that catches the attention of the team’s alcoholic and burnt-out coach, Eiichi Suo. Under his guidance, she undergoes rigorous training and grows significantly as a wrestler, learning discipline and teamwork. Her role in the story is that of the determined newcomer who, alongside her teammates Ginko, Nana, and Sayaka, strives to rise through the ranks and challenge the dominant Shibano Enterprises teams, including the Moonlight Jewels led by Sapphire. Key relationships include her deep admiration for Aquamarine, her friendship with the other members of the Pretty Four, and the supportive dynamic with coach Suo, who sees her potential. There is also a subtle romantic interest from the team’s mechanic, Kinta Marukome. As the series progresses, Miku matures from an enthusiastic novice into a confident and skilled competitor, eventually facing her own idol Aquamarine in a climactic match that tests her growth and resolve. Her notable abilities lie in her athleticism, perseverance, and the combat techniques she develops through Neo Pro-Wrestling, all of which are enhanced by her metal suit.