Three gal girls are into Nanashi, a gloomy and unsociable character in their class! With the innocent and unconscious temptation of the gal girls, Nanashi, who is immune to women, is in agony and excitement! What will happen when these three gal girls come to Nanashi's house for a secret meeting? Nanashi is secretly teased by the gal girls talk. Soon, their conversation turns to the topic of sex and Nanashi's excitement explodes with the words, “I want to do it!” The gal girls are excited and take the initiative! He falls into a sexual relationship experience that starts with a four-way encounter, body and soul!