My teacher and my best friend, lustily intertwining, making obscene sounds... Mr. Suwabe... Why are you making me watch?! Nanami is secretly in love with her teacher, Mr. Suwabe. One day, she stumbles upon him and her best friend having passionate sex. Nanami swore to give up her love for the sake of her dear friend, but Mr. Suwabe begins to seduce her in turn. "Was that your first kiss?" Nanami goes weak in the knees for her teacher's passionate kiss, but soon after she is forced to watch him sexually dominate her friend. "Mr. Suwabe, please... Don't play with my heart... !!"