We'll continue when you return.

That's a first grader kiss.

Promise me...
Goodbye...

And when you've found the answer, come back to me.

Listen, Yuuki-kun. Use the Math Machine again and put an end to this. Why are you going to grade school? Why are you becoming a first grader?

If you don't do anything I won't forgive you... I won't forgive you for the rest of my life...

So what if it doesn't involve me!!

This doesn't involve you, Hatena-san! You don't understand anything!!

But this is something that you decided. It has worth, Yuuki-kun. It's about you.

You hate yourself. That's why you hurt others. Those who inflict it know pain better than anyone else.

I thought I didn't have any choice but to become a first grader. But I was just lying to myself. The only thing I'm capable of is hurting others. Then I'd rather not do anything!!

I can't do it...
I can't go so far as to hurt and kill people to become a cool first grader, I'm just not capable of it.