[ If Mario weren't so short, he might've clapped Childe on the back to help him clear his lungs, but that's alright, it looks like he's got it covered. Mario gives him a thumbs-up back, and then turns his attention to the scenery.

It's a hallway for residential suites, it looks like, filled with doors all the way down. Some are shut, some are open, some are forced half-open by the intruding plants. There's a few inches of running water on the ground, flowing towards the balcony and off from it. Meh, Peach's basement has seen worse, before. Mario's unbothered. ]

Hey. At least there aren't any worms up here.

[ He sends Childe a smile, then Mario heads to the nearest door, which is closed. He tries the knob - no luck. It turns, but it must be blocked from the other side. ]

Might as well start looking for-a clues, or something...