On their way back from buying a bunch of watermelon, Hajime and Jun decide to take a break at a nearby Shinto shrine. They spot a vending machine but only have enough money to buy one drink. Hajime suggests that they share it, however, Jun thinks that it would be like having an indirect kiss with him and refuses. Hajime gets the wrong idea and tries to force Jun to drink it, causing them to tumble down the stairs. They both get up without injury, but now they're in each other's bodies...
スイカの買い出しに出かけた一と潤。神社で休憩し１本のジュースを分け合って飲もうとする一。だが、間接キスとなることを気にした潤は飲もうとしない。そして揉み合いになった末、一緒に階段から転げ落ちてしまった二人。幸い怪我はなかったもののなんとお互いの身体が入れ替わってしまっていて…。
