OBA-262 During a three-night, four-day school trip, a female teacher was continuously groped. Her name is Kinuke Kaoru.

Three years into her teaching career... Kyū brought her students, who were just months away from graduation, on a school trip to Tokyo. However, what echoed through the bus was not cheers or singing, but only the sighs of the students... And for good reason, as Kyū had mistakenly booked the wrong dates for their accommodations and tour. The students, who were looking forward to visiting the theme park, took action against Kyū. For Kyū, an unforgettable 3-night 4-day school trip was about to begin...