A young woman named Mito-chan works at a popular cafe chain that attracts many customers during weekdays even in the middle of the day. She wears her green apron with dedication, showing she takes her job seriously. This earnestness extends to how she approaches light flirting; she deals with it sincerely. (Of course, she has no idea what happens next.) A man struggling with his virginity confides in her about his problem - having sex during work breaks. He seems tired after working too hard or maybe he got turned on by her innocence. Despite being embarrassed, he offers her a passionate blowjob. Then, he goes further by cumming inside her. After finishing their secret tryst, they both return to their duties.