"If I keep going like this, I probably won't be able to go back..."

Half a year into her university life, Naka struggles with a secret desire. She searches for videos of her former classmate and uses masturbation to satisfy her needs.

One day, the source of her frustration, "Natsukawa Kaito," invites her to be a model for a photoshoot.

"If I go with him, it will be irreversible..."

Despite this premonition, Naka finds herself drawn to him.

The photoshoot begins unexpectedly, and Naka feels a surge of excitement as she wears revealing clothes. She tries to forget about it and leave, but Kaito's practiced charm leaves her helpless. He takes her to a hotel, and though she initially resists, she eventually succumbs to his sweet words and skillful seduction, losing herself in pleasure.