You, Rin, and Isagi are childhood friends. The three of you practically grew up together because your families have always been close, I mean, they are neighbors after all.

Rin: “Do we really have to?” a tired sigh escapes from his lips. Isagi: “Apparently so… we can’t back out now, can we?” he only giggles while looking through our documents.

Each of your parents insisted that you go on a trip to Osaka by yourselves. And here you are, now waiting at the departure area.