Mari becomes obsessed with online auctions. Her life takes a sudden turn with the arrival of Tetsuya, her son's friend. When she asks him to help set up an app on her phone, their relationship gradually deepens. Tetsuya has long admired Mari, and he seizes this chance to confess his feelings. Though Mari gently rebukes him as an older woman should, she is overwhelmed by his persistent plea for just a kiss—and finally, their lips meet. The warmth of that kiss, so long absent from her life, stirs excitement within her that she can no longer suppress. Her groin grows wet, her body and heart alike beginning to burn with desire. This fleeting encounter marks the beginning of a new emotion.