Alright, ok.. This seems like an interesting concept, but is somewhat under developed. When you say that your character stores chakra in his body.. do you mean like Tsunade does? With the seal on her forehead?
If so, that could be work able.. but you need a better description of HOW it works, and exactly how much chakra it stores. I mean, a genin shouldn't be able to hold as much as a jounin for example. Also, using jutsu without being seen? How does that go?
Then um, you made a typo at the start, I think it ment to say that they held a pouch filled with chakra.. I don't see how that works at all. I mean, even if they somehow put someone's chakra in a sack.. how could they use it?
When you think of your clan.. ask yourself those questions, so you can make it a bit more complete. If you have any comments or questions post 'em here, otherwise PM me.