For years, 14-year-old Masaki Hinaoka displayed no interest in surfing, even though it was his best friend Nalu Tanaka's favorite pastime. However, his perspective shifts instantly when he spots a blond boy surfing at sunrise. Struck by the boy's beauty and grace, Masaki experiences unfamiliar feelings that compel him to take up the surfboard and ride the waves himself. The newcomer, Shou Akitsuki, willingly assists Masaki in achieving his first surfing milestones. Despite being unable to swim, Masaki surpasses his friends' expectations and demonstrates remarkable aptitude from the start. This performance secures him a place in a local competition, offering him the opportunity to connect with other talented surfers who possess distinct styles and personalities, thereby intensifying his motivation to improve. Yet, when a sudden tragedy occurs, everything appears hopeless—nevertheless, supported by his new friends, Masaki persists in his pursuit of success and aims to master the most turbulent waves.