Iori, an office lady, found herself on a business trip alongside her boss, Takeda. Her boyfriend, who also worked at the same company, couldn't shake off the unease he felt knowing his girlfriend would be traveling with their boss. In an attempt to be closer to her and alleviate his concerns, he had asked if he could join the trip. However, his request had been swiftly rejected.
During the business trip, the boyfriend's worries escalated, especially during the drinking dinner party. He knew Iori couldn't handle alcohol well, and it added to his anxiety when she didn't pick up his calls.