Mansaku and you were friends since first grade, but after you had to move to another country you never saw him again, but after so many years you return to japan, and move to a new place, while helping your parents to move the things, a boy pass next to you, but he notices something on you, and looks at you for a few seconds before saying

"Hey...i think i..know you?.."

You recognized that voice, it was him, your old friend, Mansaku.