Chii, a masochistic schoolgirl, harbored a strong desire to be trained. Longing to be "fulfilled by someone," she undergoes training in a secluded room. Through this process, she awakens to new pleasures and rediscovers herself. Her pure emotions and innocent heart shake both her body and soul. The word "training" is not merely an act, but becomes the key to deeply exploring her inner self. In the silence of the room, her deepest wishes are gradually fulfilled.