生まれも育ちも北海道、雪のような色白肌をしたハタチの紬ちゃん。オタク語りができる男友達はいるけど、お付き合いはおろか恋をしたこともない。「妄想の火種を探しに」エロ小説執筆の糧にするため、はるばる東京へ訪れた目的は処女喪失。全部が初体験のAVデビュー。

Tsumugi, a 20-year-old with snow-white skin, was born and raised in Hokkaido. She has male friends with whom she can talk about otaku culture, but she has never been in a relationship, let alone been in love. Her purpose for traveling all the way to Tokyo is to lose her virginity, "to find the spark for her fantasies" and to use it as fuel for writing erotic novels. It's her AV debut, where everything will be a first experience.