Pokemon Legends Arceus Strange Happenings At Midnight Request

Where To Find Request
In the town at night, near all the houses speak to Sanqua.

How To Complete
Go into the house. Interact with the covered mirror at the back of the room, the table with the basket on it, the chest near the door, and then finally Interact with the furniture bear the side of the wall where you will find a Pichu.

You can find and catch Pichu at the locations listed below in PLA.

Obsidian Fieldlands (Floaro Gardens, Nature's Pantry)

Crimson Mirelands (Golden Lowlands)