The reason we called her "Onee-chan"?

To carve it here that we are the Kagerou class.

That way...

It gives us courage.

The name Kagerou

Gives me strength!

About Kagerou?

Let's see... Stupid and straightforward. There's nothing you can do about it.

But...

The strength that came from that straightforwardness, is what made us all charmed by her.