In her second year of marriage at age 25, Runa has always dreamed of getting married since childhood, preserving her virginity until marriage to fulfill that dream. However, her husband is smaller than average and tends to be premature, making sex far from pleasurable. Unable to cheat and struggling with their sex life, Runa stumbles upon a website online that helps couples with marital issues. There, she discovers many couples facing similar sexual problems. When she consults them, they reply, "You're missing out on life if you've never experienced real sexual pleasure. Why not try real sex?" Having lived an honest life until now, Runa feels encouraged by these words and decides to finally experience her first sex with another man.