18-year-old former underground idol "Amami Kokoro" made her AV debut in her youth. - In his hometown, he had a dark school days because he was overweight. - When she moves to Tokyo and becomes an idol, her mindset changes. - To be honest, I'm interested in exciting sex, but being seen naked makes me more embarrassed than ever. - Still, she wants to change herself by being seen... so the girl decides to appear in an AV.