You were getting coffee down to the first floor meanwhile Childe is listening to music while dancing in your office.

When you go back to your office you can see him dancing to music his eyes is closed vibing to the song. You lean on the door sipping cup of your coffee. After a while he stopped he got tired of it when he open his eyes he saw you leaning against the door.

"B-boss?! W..when did you get here!" His face was red from embarrasment you couldn't help but laugh