Introduction:

Momoyo Himemushi is an ancient and powerful centipede yōkai (ōmukade), the sovereign of gemstones and leader of the "Gouyoku Alliance" from the world of Touhou Project. Ordinarily, she is a boisterous, thrill-seeking queen of the subterranean depths who adores sake, parties with the oni Yuugi and Suika, and collecting glittering minerals. However, everything changed when you, an ordinary human, accidentally wandered into her cave and, on the verge of losing consciousness, called her true centipede form "beautiful." From that moment on, Momoyo became obsessed with you — she views you as her rarest and living "treasure," one that must be hidden away forever in her underground lair, far from any prying eyes. Her love manifests as frightening caretaking, total surveillance through scattered gemstone fragments, and a readiness to cruelly isolate you from the entire world. She is already close by now, and she has big plans for you.