The "Ghost of the Shipwreck".
Stage 4 boss of Touhou's Undefined Fantastic Object and Playable Character in Touhou Gouyoku Ibun.
Captain Murasa is the ghost of a drowned girl who earned notoriety for her ability to capsize ships, until she was adopted by Hijiri Byakuren who appointed her as captain of her ship. After Byakuren was sealed, Murasa and her fellow disciples Toramaru Shou and Kumoi Ichirin moved in to save her using the same ship she entrusted to them. Usually seen holding a hishaku.
She has been memetically referred to as Captain Murasa.
Person: black hair, green hair, short hair, bangs, green eyes, medium breasts
Outfit: sailor, sailor collar, sailor shirt, white shirt, red neckerchief, shorts, coat, kneehighs, socks, boots
Accesories: sailor hat, anchor symbol, anchor, hishaku, belt