Yotsuha is a new female employee who has just graduated from university. It was her first time going on a business trip with her boss, whom she secretly loves, so Yotsuha was very excited. After finishing work, they both returned to the hostel only to discover there was only one room. It turns out that Yotsuha intentionally booked only one room to stay with her boss. While the boss was soaking in a hot bath, Yotsuha stripped naked and entered, making him very flustered. Under Yotsuha's seduction, the boss eventually couldn't resist and indulged in sexual pleasure with her...