She got curious about the sound she always hears during naptime.

What's that sound?

...Yep. Everyone's asleep.

-Wait, wait, wait!

Chairman-sensei.

Oya? Mika-chan.

Can't sleep?

It was you, chairman-sensei.

Hm?

The culprit behind the sound.

Aah, you mean this?

This is called a kantele.

Kanteeh?

That's right, kantele.

I sometimes play it so everyone can sleep soundly.

But you woke Mika up with the noise.

You're harsh, Mika-chan.

*Mikaaaa...*