Hello im new but i wanted to gave as mutch as i can to this project.

I think it were cool if you can chose to be good or bad you have like the shinobi allice and rough nation.

you have the class genin chuunin jounin sanin kage
and C class criminal B A S SS etc to the roughs.

I think the idea of radom KG is cool, and fair for everybody but all have to have downsides i think to be mor fair.

Have a dragon ball online type of look you are born to a random clan that have a KG then you are a boy training to past the test to be a genin and so begins, as you rase your rank you grow your body to adult size.
You cold also be born with no chakra but a lot of stamina so that you can be a taijutsu only user.

Chakra nature could be radom too. so that you have to work with what you were born with .

KG sujestions :

Blood Style: shinobi uses is own blood to perform justsus that consumes little chakra but takes life if it .

Beast style: shinobi can absorb nature energy and transform in to various animals to get more attack , or defense or even to run away faster, takes large amount of chakra and some stamina. users can parcial transform to like only one arm or leg, this shinobi cant use other nature chakra so only taijutsu.

gas style: Shinobi can change the proprieties of the surroundings like making oxygen disappear or releasing a gas type that explodes. costs a lot of chakra, you born with wind affinity.