Na Hae-soo's life changed when her husband betrayed her by having an affair, leaving her in debt and causing the loss of their child. Afterward, she found her husband with a younger woman. With her heart shattered and in despair, Na Hae-soo felt like her life was crumbling around her. However, a mysterious young man suddenly entered her life, asking to be taught about adult love. His innocence and sincerity began to stir emotions within Na Hae-soo, challenging her to reconsider what steps she should take next.