The "Beautiful Scarlet Cloth". Sub-boss of of Touhou's Scarlet Weather Rhapsody and later a recurring playable character.
An oarfish youkai and messenger of the Dragon Palace who came to Gensoukyou to warn its citizens of a massive earthquake, having the ability to read the atmosphere. She uses her shawl as a weapon (most notably as a drill, leading to Tengen Toppa Gurren Lagann parodies among others), but is best remembered for her spellcard activation pose, which is similar to that used by John Travolta in the film Saturday Night Fever or Great Mazinger's Thunder Break. Hinted to be a nanny figure to Hinanawi Tenshi, and does not appreciate lewd jokes concerning her name - "iku" is also a word for "coming", with implied sexual connotations.