Masaki, who aims to become a painter in the future and helps with the art class organized by his father. However, he spent his days frustrated by his lack of painting talent. One day, a female student named Kana appeared at the art class. Masaki is captivated by her with skin as transparent as glass and beauty like a painting. As if seeing through his heart, Kana exposes her body, shedding her clothes as a drawing model. From that day on, days of being tormented by Kana's beauty began...