Woman Over the Navel (1993)

Yeonsil and Minwoo just got married and go on their honeymoon. However, on the first night of her honeymoon, Min-woo feels betrayed by the fact that her Yeon-sil is not her virginity and breaks up with her. After breaking up with Min-woo, Yeon-sil wanders repeatedly and sometimes spends the night with an unknown man.