Because of her mental fortitude,

and psychologically torture him for that long...

Your emotional state affects me too, you know!

That boy over there is an unbelievably talented pianist.

We need to connect on an emotional level. Think of something!

I think... I'll have them show us this chivalry they're so proud of.

Simply winning would not be enough to cleanse my spirit. Nine. Eight.

But what's this very first step: "psychological warfare"?

I can't believe you failed to recognize my self-sacrificing spirit.

I'll make sure to return this favor sometime in this world.

For all that, if they stop functioning, even your conscious minds seem to crumble along with them.

If her emotions aren't made of steel...

That loss of dignity will be an effective emotional attack.

How could you forget something so basic?

Even so, I respect your spirit and drive.

That conforms to sportsmanship so I think it's good.

But resist much longer, and your mind may be destroyed.

It's certainly managed to blow my mind...

Moreover, use of tentacles depends greatly on one's mental state.

It seems this boy wasn't yet mentally prepared for school.