Juubee-chan: Lovely Gantai no Himitsu

Both are parodies. Both anime's central themes have to do with feuds between two schools - in Kabamaru, those schools being literal while in Juubee-chan being schools of swordfighting. Both are about ninjutsu and ninja. The difference is that Kabamaru is stellar comedy that doesn't grow old and Juubee-chan unfortunately mediocre in terms of comedic effect, however the latter does feel refreshing with its old-school innocence and carefree spirit. 

While Ranma 1/2 has way more episodes then Juubee-chan, I'd like to think of both of them as action comedies. I think its the comedy within the characters that drive both anime. Their also old school anime with old school fighting techniques. 

Very similar humor, story, and main girl character. 

Okay, okay, go ahead and laugh if you so please, but Saya Kisaragi's ditzy, happy-go-lucky personality could mirror Jiyuu Nanohana's personality. They, also, turn into powerful combatants once something triggers them to lose control of their persona and turn dangerous and cool. In Jiyuu's case, that something is a "magical/possessed" eyepatch that basically transforms her into the female version of Yagyu Jubei, and in Saya's case, it is generally resurfacing memories that changes her. Despite there being plenty of differences, I still think Blood-C ironically feels like Jubei-chan the Ninja Girl with considerably more edge and gore in fights, prettier CLAMP art, and less goofball humor. Blood-C's does fill in most of its plot holes and deliver a few plot twists; however, the bare bones plot in the first few episodes of Blood-C at least is reminiscent of Jubei-chan the Ninja Girl's weird and unusual style, humor, and slice of life bits. Neither are terrible to watch and don't really deserve such low ratings, but I feel both are generally either hit or miss kind of shows to alot of people. read more 

Directed by the same person, the similarities in the mood in hard to miss. Both feature really well done action scenes that take your breath away despite being on a small budget. Although that small budget is noticeable in the comic relief parts, the director's quirky style makes it acceptable. If you crave fast-paced sword battles, along the line of Rurouni Kenshin and the like, check these two out. Instantly likable characters, specifically kick ass female characters, makes these two series worth checking out. 

So grasshopper you have watched Bamboo Blade but still require more comedic martial art action? Have you the discipline to watch a comedy that breaks the forth and possibly even the fifth wall? Are you prepared to deal with more girls kicking the crap out of men who seem to have trained in martial arts their whole lives? Then you are ready for Jubei-chan.