He stowed away, that's one of the reasons that Caius was so angry but didn't kick him out because Koichi asked him not to Emeraldine
I had to reread this in a more serious manner after I saw Koichi’s mom pop up with a “Go get em tiger!” Like grin in one of the more recent chapters because I was only reading as a joke. That’s when I started questioning little bits and pieces of this series..
Did they allow Mr. Floof to tag along or did he stow away in the melons and nobody gave a fuck about him being in the castle?