Five years after joining a stationery manufacturer as a new graduate. Amidst rumors of company acquisition due to the worsening business situation in recent society, and then a proposal from her boyfriend. Mahiro, who comes from a single-parent household, was torn between her desire to marry quickly and reassure her mother, and her own feelings that she couldn't take the plunge into marriage. In the midst of all this, Atsushi, a colleague who came back to the company during overtime. While talking about memories from when they first joined the company, the two of them, who hadn't drunk alcohol in a long time,…