Kai Nakamura

As a devoted childhood friend and classmate to Kukuru, this hardworking young man begins his days before dawn assisting his father with the local fishing trade. Known for his generosity, he regularly shares his daily catch with the Misakino family. Beyond his maritime duties, he serves as a reliable confidante to Kukuru and has even committed his summer break to volunteering at the Gama Gama Aquarium.