The girl that fell out of the blue.
And the protagonist's life,
which began to take a turn little by little into the realm of the
extraordinary starting from that very day.
「Nao-kun, if you don't get up soon, you're going to be late.」
new school term started today. The protagonist's childhood friend,
Honami, has kept telling him that he's not a child anymore, and yet
continues to come to wake him up. They proceed as they always have to
『Hasumidai Academy』, which stands atop a hill ... but this time around,
as second-year students.
「Naoki, I'm going on ahead of you!」
the protagonist's cousin, Matsuri, zips past the two of them. After
having lost both parents in a terrible accident 5 years ago, the
protagonist Naoki Kuzumi was taken in by Matsuri's parents. And now,
Matsuri herself -- who had been so opposed to Naoki's moving in back
then -- has become a freshman at Hasumidai Academy.
These ordinary, ordinary days, stretching on forever.
... but then, one day, up on the roof of school ...