Hayamichi Inada, sometimes identified as Hayamichi Goyo, is the older brother of Shō Akitsuki. Actively involved in the surfing community, he connects with the main characters primarily through his bond with Shō. His role centers on mentoring Masaki Hinaoka, where he consistently emphasizes forging a unique personal surfing style over imitation. The meaning of his name, "quick path," reflects his influence in accelerating Masaki's development as a surfer. Following a personal tragedy concerning his brother, Hayamichi's presence and guidance become pivotal in sustaining Masaki's dedication to the sport. His position as Shō Akitsuki's sibling inherently places him within the narrative's exploration of relationships and personal challenges faced in the surfing world.