It's worth adding a review since there's a only a few short comments. I like this one quite a bit, very entertaining.
The premise is executed exactly as expected, but the real enjoyment comes from how dedicated the author is to the schtick. For the 15 available chapters as of yet, we get one or two crazy-ass "ninja techniques" every time that are clever and hilarious. The duo of ninja and knight works together rather well, and the characters are at the very least memorable, with most being likable. It's definitely a comedy, and there's plenty of slapstick and goofing around. You can tell the author is having a lot of fun making this. It helps that his art is high quality, both character and monster designs being diverse and charming. The plot and the fighting are decent, albeit secondary, though the way things are going seems to indicate that it could become more of a focus. A solid comedy/fantasy all around.