Well first off thanks everyone for helping out well i was away . Its a great help to me.
second, everyone tackled the big parts of your character Yamiju so i won't have to much to say,.
So here it goes,as Acqui said is would better if you can get him further from Ragna the better the device is fine though. i know everyone needs inspiration at points but you need to make the character your own not just a color swap.
next i'm not okay with a prosthetic arm being a magic weapon with out any explanation of what it does so you need to add that or make it a regular prosthetic arm(hell there are cyborgs/androids in Nanoha so you could have fun there). Also i would need a explanation to why said magic weapon was attached as his arm. Since that something that normally wouldn't happen for no reason. If you want to keep it a weapon of some sort but don't want to let everyone know you can send me a PM as we can discuss it there.
finally this is a more personal thing i know you want you character to use vulgar language I'm fine as long as you don't get excessive with it. Keep in mind if either the church or the TSBA your character did go through some sort of training and vulgar language isn't something that both would allow to much of in my opinion anyway. It's manly to keep everyone participating feeling comfortable and whatnot.(keep in mind that kind of language should be used more for emphasis then anything when writing.)
so thats all anyway you have time your character will be introduced once the you get it worked out and once the current interaction is finished then the RP gets a little more exciting hehehehe.
also y'all know i can't watch Vivid really so shush( just kidding i have the wiki to spoil stuff for me hehehehehe)