Description: Losing your virginity is a once-in-a-lifetime event. That's why it may be human nature to want all the virginity of the person you like. I, "Shun Okunaga,'' have the constitution of frequently flagging the opposite sex, and even more naturally breaking it down. Because of that constitution, I have spent up to this day without falling in love with the opposite sex. While watching the lovey-dovey couples, he muttered, "I want to have that kind of love, too." One day, I received such an outrageous confession from my classmate: "Give me all your virginity"! My childhood friend Haruna Kasama and Ayane Anegawa also noticed me and started confessing to me in quick succession! This is how my romance, like that of an eroge protagonist, begins!