Kaoru is doing an MC of an Inago Mask show at the amusement park getting into her role as Junichi is playing one of the evil minions. After Kaoru starts deviating from the script which sends Junichi through the stage, he retaliates by attacking Kaoru with other bad guy costumes. Flashback to before the summer break, Kaoru is helping Junichi with a art assignment and helps him, rather suggestively by sitting on the chair he's in with everyone watching. Kaoru and Keiko talk about Kaoru and Junichi's relationship and how they looked too much like a couple during moments like that. Kaoru also begins to realize that even though they've been dating for almost half a year, their relationship hasn't drastically changed from before they were dating. After Keiko suggests that the two should go on a trip together, Kaoru and Junichi plan out a trip by getting a part-time job doing the Inago Mask show. While working, their antics on the show gets them scolded by their manager and they leave with only half of the normal pay. While getting a limited edition drink, Kaoru spots a cheap 3 day 2 night bus tour to Kibitou that they plan to go on the next day. During their trip, their bus arrives at a bus stop ands Kaoru buys up all of the limited edition snacks at the convenience store and leaves it in the bus. Afterwards, Kaoru and Junichi go to an authentic Japanese restaurant where they end up spending too long and the bus leaves without them, the driver assuming that the covered piles of snack Kaoru left is them. With no way to contact anyone, Junichi and Kaoru are left alone at the bus stop.
高校3年生の夏、純一と薫は、付き合う前と付き合った後の二人の関係にあまり変化がないことを親友の恵子に指摘される。そして恵子は高校生活最後の夏休みなのだからと、純一と薫の二人で旅行に行くことを提案する。それを受けて二人はまず資金稼ぎに遊園地のヒーローショーのアルバイトを始めることに。
Antes de las vacaciones de verano, Kaoru le ayuda a Junichi con una tarea de arte en forma sugerente, sentándose en su silla a la vista de toda la clase. Kaoru y Keiko hablan sobre su relación con Junichi y cómo se veían como pareja en momentos como ese. Kaoru se percata de que a pesar de que salir durante medio año, su relación no ha cambiado nada, por lo que Keiko sugiere que ambos deberían viajar juntos. Kaoru y Junichi planean su viaje consiguiendo un trabajo a tiempo parcial, pero sus juegos hacen que su jefe los regañe y se van con solo la mitad del salario. Mientras toma una bebida de edición limitada, Kaoru encuentra un recorrido barato en autobús de 3 días y 2 noches a Kibitou que planean realizar al día siguiente. Durante su viaje, el autobús llega a una parada y ambos van a un restaurante donde pasan demasiado tiempo y el autobús se va sin ellos. Sin forma de contactar con nadie, Junichi y Kaoru se quedan solos a medio camino.
고교생활 마지막 여름방학에 둘이 함께 여행을 하기로 의기투합한 준이치와 카오루. 하지만 여행 자금을 번다는 것은 결코 쉬운 일이 아니었으니...우연히 발견한 초저가 심야버스 투어에 아쉬운대로 하지만 기대에 부풀어 몸을 싣게 된다.
Kaoru participe à un spectacle de masques Inago dans un parc d'attractions et se met dans la peau de Junichi, qui joue l'un des méchants. Après que Kaoru ait commencé à s'écarter du script, ce qui a envoyé Junichi à travers la scène, ce dernier se venge en attaquant Kaoru avec d'autres costumes de méchants.
