One Piece Chapter 24, page 8: Things That You Can't Lie About

Alone in her room, Kaya hears a "KNOCK KNOCK..." at her window. She opens it to find Usopp sitting on a tree branch outside. He notices her sad expression and says, "USOPP-SAN... YOU HAD THAT DEPRESSED LOOK AGAIN." Kaya apologizes for not being able to treat him like a proper guest because Clahador won't allow it. Usopp smiles warmly, sitting on the branch, and says he feels comfortable outside because the somberness of the room would suffocate a brave warrior of the sea like him.