A 20-year-old petite woman, 150 cm tall with zero romantic experience, decides to make her AV debut to change herself. Undressing in front of the opposite sex, kissing, being touched by a man—everything is a first in her life. Unable to hide her nervousness and shyness, she still takes one step at a time up the stairs to adulthood. Her innocent expression gradually reveals honest emotions, and her small body hides a great resolve. This documentary footage records every bit of her "firsts." Viewers will hold their breath at every move she makes. Her lips tremble during her first kiss, her heartbeat intensifies with every touch. The process of her cheeks, red with embarrassment, gradually becoming stained with pleasure is vividly captured. Watching her small body feel to its fullest, everyone will feel like they are witnessing her growth. *This work features no performers under the age of 18.