Find all the concealed kids to win the game by Hide-and-Seek quest. You need to find three children

The first child is behind the boxes on the rise near the NPC Forgetful Miner

Honkai: Star Rail Quest Hide-and-Seek

The second child is behind the cart, next to the yellow ore

Honkai: Star Rail Quest Hide-and-Seek

The third child is in the square, but he looks like a grown man. Talk to the NPC on the screenshot

Honkai: Star Rail Quest Hide-and-Seek