[ Rex is not bothered by ghosts. He's spent his entire life getting into these sorts of shenanigans and I do mean entire life. Between his Herculean adventurer mom and lich babysitter, it's all business as usual to him.

He usually speaks Japanese when talking to Kohaku now anyway- it's good practice and easier for her so, why not? ]

He's convinced I'm also a ghost and will not drop it. Please tell him "je peux confirmer que cet homme est en vie."

[ The ghost, on the other hand, seems a bit disturbed to hear Rex speaking Japanese, like that's the thing that sets them apart. And he's eying up Kohaku with a bit more of a death glare instead of the lifeless eyes he had pointed at Rex. ]