Mone-chan is a sheltered and shy girl. When he mustered up the courage to confess, he found out that he and his girlfriend had mutual feelings for each other. They finally became lovers and went on their first date. Their happy time was short-lived as she quickly left her part-time job because "there is a shortage of staff." Then, a notification rang on her smartphone that she had left behind. This was the beginning of a nightmare. *There are no performers under the age of 18 in this work.