My secret admiration for my beautiful senior teacher 'Jun', who is popular among students due to her clean and attractive appearance, has led me to discover that she has a hidden passion for cosplay! When I found out about her hobby, I called her home and requested a perverted cosplay outfit as long as she kept our little secret. Reluctantly, Jun changed into the bizarre costume I had prepared... As she teased me with seductive whispers promising rewards if I remained quiet, her flawless skin and perfect figure made it impossible for me to resist any longer.

普段は清楚で綺麗で生徒にも人気のある先輩教師‘純’先生。そんな素敵な純先生の…秘密をボクは知っている！先輩の純先生は趣味で撮影会をやっているコスプレイヤーだということを！そのことを電話で伝え家に呼び出し、口止めを条件に用意した変態コスプレをリクエストしてみた…。嫌々着替えるも純先生はボクを弄ぶように…「黙ってくれたらイイコトしてあげる」と囁き生コスプレで痴女誘惑！色白美肌で似合いすぎる変態コスプレ姿にボクは我慢できずついに…。