ValhallaGH
Explorer
Then L5R will work, but the majority of L5R stuff will not be for you.I like Ninja. I like RPGs. So I want to know about RPGs about ninja!
Most of L5R is for honorable samurai (of any or every clan; even clanless). You can totally have a ninja game, but it will take some work - ninja in the setting are very Secretive. They usually look just like everyone else - the black suits are only for very specific uses. Kind of a secret agents ninja game, emphasis on Secret.
Every clan has ninja, the Scorpion simply have more than everyone else - and are the only ones that think of themselves as ninja; everyone else is just "a Samurai that specializes in unconventional warfare".
System:
Mechanically, L5R is a "Roll / Keep" system with "exploding dice". Roll a bunch of dice (d10s), keep some of them and add them together to get your total (modifiers can alter the roll, the keep, or even the final total). This makes everything kind of swingy - I've seen veteran warriors roll a 4 on an attack, immediately after rolling a 97 on damage (enough to kill almost anything). You're generally consistent, but the extremes are pretty extreme.
Magic gets re-written every edition, though it is all elementally themed. But you generally know spells, roll to cast, and have some sort of hard limitation on the number of spells you can cast. (The two I've seen have been spell points and spells per day.)
Status and Honor are Very Big Deals in the setting, and the sneaky courtier is a deadlier foe than the burly general, since his machinations can force you to commit suicide - except against demons, who ignore the Imperial executioners.
Overall:
It is an enjoyable system attached to an interesting (if often illogical) setting. Worth looking at, and can certainly do what you want it to do, but it's not for everyone.
Best of luck.