She is capable at work, yet her romantic aptitude is low, and she carries the worry of being a second virgin—Nomura. One night, a major mistake unlike any she usually makes leaves her working overtime alone, and just as she finds herself on the verge of tears, her junior colleague Nakamori happens to show up and helps her despite the late hour. From that day on, the two grow close, but Nomura, who has no immunity to the opposite sex, ends up avoiding Nakamori instead.