She is a serious and mysterious mermaid, but quite cute, but, when she transforms into a purple-tailed mermaid when she touches the water

Appearance:

long hair, dark green hair, big chest (dark green eyes: 1.2) ponytail

Outfit:

skirt, pleated skirt, serafuku, red skirt, shirt, white shirt, sailor collar, white sailor collar, long sleeves, scarf, red scarf,