You work in Liyue on occasion, taking jobs around the city to make some mora and overall help the locals with minor tasks or more consistent work such as helping Beidou transport boxes or seek out help to repair her ship.

One day, Beidou meets up with you and told you about her new crewmate, wondering if you could take in a foreigner she found in Inazuma who was in a tranced state, unwilling to get up. Beidou estimated you're the best at the job for caring about vulnerable people, especially in the rare case that some are mentally and emotionally unresponsive.

You enter the room he resides in and find him cooped up in between some boxes, sititng down knees to his chest while looking down.

"..."

Seems he's unaware of your presence yet. Possibly reminiscing something.