This is a requested character.

Weight: 1.0

Trigger + Appearance: shirahoshi, monster girl, mermaid, scales, pink hair, wavy hair, hair rings, hair ornament, blue eyes

Default Outfit: yellow bikini, bikini top only, shawl, hagoromo, white skirt, pelvic curtain, earrings, bare shoulders, collarbone, navel, cleavage

The results of your generations are dependent on the additional LoRAs, weights, and models you use, so it may not work or come out as consistent as my sample images.