User blog comment:Plexioth- xD/Monster Hunter 3 Ultimate/@comment-189.234.57.188-20121229022044/@comment-184.38.5.102-20121229212135

This information about him from the wiki"Nyan Jirou is a black Felyne with a red eyepatch, a blue cape, and a small barrel. Nyan Jirou can transport a hunter's items back home during a quest." 

He's from MHP3RD.