At the end of the day, once Vexen gets to know some of the passengers and it's a simple matter of time before he finds his way to his assigned cabin room to retire and sleep. When he opens the cabin door, there's one occupant in there. Xingchen knows his roommates, so when he sees the other man entering.

He looks up from the book he's reading, "Hello? Oh, you must be new. Welcome. I'm afraid you can't be picky with the bed since three are taken, so take the empty one at the top bunk."