Stolen Money Pouch

I heard you are close friends with the Mathematician Genius. Well, I was about to ask you for something. A few days ago, someone came into my house and stole my Money Pouch. I had money prepared in my pouch to pay taxes to the city. But with the pouch gone, it means I'll have to pay taxes using the rest of my income. But if I do that, then I will have nothing left.
It's fortunate that the Mathematician Genius seems to know about the incident, but strangely enough, the child is reluctant to say anything. If it is possible, ask the Genius why he is turning a blind eye. Again that's the Mathematician Genius south near the city plaza.

I've been thinking hard, but I can't come up with anything that might turn the Genius against me. So go to the Mathematician Genius south near the city plaza, and ask him about the thief.

The thief? I know absolutely nothing about the thief. Believe me! If I knew something, I would've told her about it earlier.
But since you mentioned it, I need time to think for a bit.