Show the Power of Aurorus! Pokemon Legends Z-A Side Mission Full Walkthrough and Guide

Unlocked after Main Mission 38 starts.

A couple of kids are arguing which fossil Pokemon is stronger than the other. Show who is the strongest with your Aurorus!

[1] Talk to the children.

[2] Battle the kid with only Aurorus in your party.
・Here is his profile

Spoiler!
Okay but their parents must be somewhat loaded since a Fossil is ₽20,000??? Or do they just get funds from Pokemon battles? Who knows.

・₽1,000
・Rare Candy × 3
・Lemonade x 1