Masayo Harajuku is a supporting character in the anime Metal Fighter Miku. She is a former Neo pro-wrestler who retains strong connections within the Neo Pro-Wrestling industry, including personal ties to the seasoned coach Eiichi Suo and the reigning champion Aquamarine. Her background as a competitor gives her an insider’s understanding of the sport and its business side. Masayo is married to Tokichiro Harajuku, the founder of the TWP talent agency. While Tokichiro originally established TWP as a talent agency, it was Masayo who persuaded him to expand into Neo Pro-Wrestling, effectively laying the groundwork for the formation of the Pretty Four team. Her motivation stems from a desire to see the team succeed, and her extensive network allows her to make crucial introductions—most notably recommending Eiichi Suo as the team’s coach after seeing potential in the protagonist Miku. She acts as a behind-the-scenes enabler, using her knowledge and contacts to support the Pretty Four’s rise. Masayo’s role in the story is primarily that of a facilitator and advisor; she does not compete but her past experience and relationships are instrumental in getting the team the guidance they need. She does not undergo significant personal development over the course of the series, instead serving as a steady presence who bridges the gap between the wrestlers and the veterans of the sport. Her notable abilities are her industry savvy and her ability to leverage her past career for the benefit of the team. Physically, she is a middle-aged woman with dark brown hair and brown eyes, reflecting her Japanese nationality.