Fresh and cute new female ad sarina tobata joins an av production company! she has a serious personality but is interested in erotic things, and her own uncontrollable sexual desire overflows as she is stimulated by adult goods that are close at hand and the acts that are performed in front of her at the shooting site... sarina, who is so sexually liberated that she masturbates secretly in the company, begins to think that "maybe being an actress suits me better than being an ad" as she works as an ad. encouraged by her senior ad, sarina, who finally decided to make her av debut, gradually drowns in pleasure while being confused in front of the camera. where will she go as the boundary between work and sex becomes ambiguous?