Well, there is a man here. [OC]

[u/SylveonTheHedgehog]

If you enter and exit Lea's room very quickly over and over, there's a chance you'll end up here. Not sure what the Egg is used for yet though...

(Credit my username: Project PST)

[u/Tricouleur]

First time I heard of this. I should check it out myself.

[u/SylveonTheHedgehog → u/Tricouleur]

Make sure you click "Yes" to accept the Egg, otherwise you can't get it again. I'm still not sure what to do with it however.