(Touhou 14, 14.3) She has dark blue hair and eyes, as well as small fins in the place of ears. She wears a frilly green leaf-patterned kimono which fades to teal at the bottom. In the place of legs, she has a blue-grey fish tail ending in two large fins.
Wakasagihime is a mermaid princess that lives in the Misty Lake. She first appears in Double Dealing Character, and is the First boss in said game. She seems to know Kagerou Imaizumi (which was humoursly Wakasagihime nearly being eaten by her). She uses spellcards such as Scale Rib and Tailfin Slap. She seems to be the only mermaid in Gensokyo.