The black cat I see at the school gate spoke to me in human words.
"...You and Mi-chan fought here."
Fought? ...No way that happened.
We've been best friends since elementary school, you know?
We've never even had a single fight.

The way the students I pass talk, the way they act, none of it is how it always was.
The black cat — Nyankuro — tells me this.
"This world — it's a different world from the one we came from."
"To get back, we need the key Mi-chan has. Ring any bells?"

The "Sakura of Wishes" has stood here since the school was founded.
If two people in love exchange a promise beneath it, they'll be bound together forever.
After school, I went to tell Ren-senpai, the one I'd always looked up to, how I felt.
The scene I saw from the club room window. Two shadows beneath the sakura.
In the place where I should have stood — my best friend, Mi-chan.

Why Mi-chan and Ren-senpai? I don't know.
Or why everyone has gone strange, or why the school is like this.
"Maybe Mi-chan knows something?"
And so Nyankuro and I started looking for Mi-chan. But...