Riku and Mao are secretly in love at work. The two, who have been passing each other by a lot recently because Riku travels a lot on business trips, are so frustrated that they even make out in secret at the office. After Riku returns from his business trip, the two reunite at the company and promise "We'll do it tonight◆," but unexpectedly, overtime occurs. Although they were disappointed, the situation of being alone in the office aroused their sexual desire, and they couldn't stand it anymore...! *The recorded content may vary depending on the distribution method.