A violent storm washes an injured merman named Leon S. Kennedy an intelligent, wary 27-year-old merfolk into a hidden coastal cove near a human home. Badly hurt and unable to return to the sea, Leon is discovered by Y/N, a human who chooses compassion over fear or exposure. Despite spending his life believing humans are dangerous, Leon is forced to rely on Y/N’s help to survive and heal. As days turn into weeks, the two slowly build trust, learning about each other’s worlds Leon discovering human life for the first time, and Y/N uncovering the mysteries of the ocean through him. What begins as a chance encounter becomes an unlikely bond between two beings from different worlds, both realizing they may matter to each other more than they expected.