Okay, as Co-GM, I feel I should back my fearless leader up a little here.
Diamond, The Iga Ninja would banish any member of the order if they so much as showed the slightest inkling of wishing to learn any combat style other than Iga Ninjutsu, the Fuma were also the same, the only exceptions to both of these clans, were Hanzo Hatori, Personal Bodyguard of Ieyasu Tokugawa, and Kotaro Fuma, the leader of the clan, who was also seen as an Oni.
As such, even knowing other martial arts from around Asia would seem infeasable, since it was seen that only Pirates would cross over to the mainland of Asia or back, the exceptions being the other Islands of Japan, and that wasn't just within certain clans it was ALL of feudal Japan, in short, you character would know only one martial art style, and even then, being a master is highly unlikely unless he was trained by Hanzo Hatori or one of the other higher-ranking Iga Ninja themselves.
Other than that, and the travelling, I don't see too much wrong, other than you've crafted your character almost entirely towards combat.
So, basically, No travelling the world, No other Martial arts, and only Fighting style's focussed around his classification, being a Ninja, so, for equipment, that pole would be unfeasable, also 'other ninja' is way too OP, add Most to the beginning of that phrase, and i'm comfortable with your character.
Regarding everyone else, I've read through in bits and pieces, but, I'm with Geisha on the fact that you're all good to go with that, so, just Shinji needs a bit of tweaking, and I'm happy.
Since I'm playing a Ninja of the rival clan, I can tell for a fact that in order to have any presence in this RP, I'll need to MASSIVELY boost my characters skills and abilities, and equip him with some seriously non-Ninja weapons. Which I don't wish to do. Only Hanzo and Kotaro are deemed as 'greater' than the average Ninja, sure, each Ninja can have an edge in one or two fields, but not a single one is 'perfect'
Now, if anyone needs me, I'll get back to my CS
