Rainbow Jelly Seltzer

When Hiyori was a young boy, he was often alone because his parents worked all the time. He spent his days reading his favorite story, “The Little Mermaid,” and swimming. In the water, he felt at home and comfortable. One day, he meets Ikuya, who invites him to swim. Ikuya becomes his first childhood friend. The two go to university together, where they swim competitively. Ikuya reveals to Hiyori that their friend Haru saved Ikuya from drowning. But Haru left their group, which makes