[Koto Hoshimiya lesbian debut] She has been the victim of underwear theft every day. She is filled with fear, anxiety, and embarrassment, but she talks to her best friend Kana and somehow calms down. Then, one day, she finally succeeds in capturing the underwear thief on camera. However, the image she sees is that of her best friend Kana... Their dazzling and precious relationship falls apart, and her best friend, who has become a panty maniac, explodes with the suppressed desire and attacks Koto's body!