A direct continuation of Side:Galo set a day before the film.

Aspiring samurai Shinsuke Hyoudou's world is turned upside down when he witnesses hermit Jinka Yamato and fox girl Tama Youko slay a brigands' lair in the blink of an eye. Tama happens to be katawara, a magically gifted species, who can share her powers with Jinka through a special ritual. Together, they travel the world as vigilantes to stop evil beings, be they katawara or human. As Shinsuke learns more about this new world, he discovers that monks perform inhumane research on spiritually gifted civilians, in the hope of creating human-katawara hybrids that can fight against monsters. Soon joined by Shakuyaku—a girl they manage to save from the monks’ experiments—and other allies, the group embarks on a quest to achieve their respective dreams.

Energetic and cheerful, 14-year-old Masaki Hinaoka takes his pet corgi on morning runs along the beach bathed in the rising sun. Suddenly, Masaki's eyes sparkle in awe: a blond boy surfs, delicate and breathtaking, with a slight smile gracing his kind face. Before long, Masaki encounters him again as a new classmate named Shou Akitsuki. Shou is a skilled surfer and has been immersed in the sport since childhood. Even though surfing is the hobby of choice for Masaki's best friend, easygoing half-Hawaiian Nalu Tanaka, Masaki has never shown interest in trying it himself. But his admiration for Shou's surfing style finally inspires him to try the waves for the first time—despite not knowing how to swim. On the surfboard, Masaki shows surprising potential and talent for balance. He learns quickly and eventually enters a local competition, all with Shou and Tanaka by his side. However, behind Shou's gentle smile lurks a darker shadow, threatening to overwhelm his friends. Nonetheless, Masaki fearlessly steps into the fun world of surfing, stopping at nothing to be the very best.

After many years of dormant rest, a hot springs fairy awakens in modern-day Japan. However, while she slept, she took on the appearance of a young girl. She decides to cooperate with the locals whilst trying to regain her powers. (Source: LiveChart)