Betrayed by her husband, Sa-haru divorces him and struggles to raise their daughter as a single mother. Unable to suppress her loneliness, she spends the night with a subordinate who has harbored feelings for her since long ago. Trying to end it as a one-night stand, Sa-haru distances herself. However, the subordinate says 'I don't want to forget' and conveys his sincere feelings. Shaken by these steadfast words, Saiharu hesitates but gradually deepens her relationship with him...
