Oh. That's awkward.

"Haha, you don't have to learn Japanese for me~! That's why I'm learning French and I'm not that bad at it!"

Maybe he was terrible and it was so bad he was a lost cause, Rex resorting to learning Japanese because his French was barely comprehensible. That would make sense; he does confuse people easily.

Toki watches the knife go flying to clatter against the wall. Heavier things only, from now on. He makes a note on that.