Two mothers who deeply love their son wish for him to mature into a man as quickly as possible. As a way to support his growth, they devise a bold plan: introducing him to the taste of women other than themselves. Their motivation isn't merely about seeking sexual excitement, but stems from profound maternal love, desiring a richer future for their son. Using their individual experience and charm, the two mothers guide him into a new world. Through this process, new emotions and sensations begin to awaken within him—will this be the first step toward his true growth?