H2O: Footprints in the Sand is a Japanese visual novel developed by Makura, first released in 2006. The story follows Takuma Hirose, a blind high school student who moves to a rural village to live with his uncle. As he interacts with the villagers, he becomes entangled in a series of mysterious events and encounters three girls who help him uncover the past and heal his emotional wounds. The anime adaptation, which aired in 2008, captures the essence of the visual novel's poignant narrative and emotional depth.