A medium shot from a side profile angle depicts a romantic scene of a human girl and a mermaid kissing, floating together in the crystal-clear turquoise waters of a tropical ocean. The human girl, a teenager with sun-kissed skin and long flowing brown hair, is submerged in the water, her arms gently wrapped around the mermaid's neck. The mermaid, wakasagihime, has shimmering iridescent scales on her long fish tail that glint in the sunlight, with long pearlescent hair drifting in the current and her slender arms embracing the girl's waist. Their eyes are closed in a tender expression as they share a soft kiss. The surrounding environment is a bright summer underwater setting with coral reefs, colorful schools of small fish, and shimmering shafts of sunlight piercing through the water's surface from above. The lighting is bright and ethereal, with a vibrant color palette of azure, emerald, and gold, featuring a soft bokeh effect on the distant seabed and tiny floating bubbles that enhance the dreamy, romantic atmosphere.