24-Jikan Kyousei Gattai! ?

As part of the company rules, the main character has to take a bus tour with her good-looking boss. As soon as they leave, though, she starts to hear strange moans throughout the bus...!? It seems they're on an "Erotic Bus Tour". The atmosphere starts getting hot... she and her boss get closer... What's going to happen...!? Moreover, the boss she thought was good-looking turns out to be really sadistic! Will she be able to make it through the tour...?