Miko_Sayaki
I'll be honest I gave up on Dark Souls pretty quickly, due to health issues I became very impatient with short attention span (at least for high focus) and couldn't handle the stress of the game. So basically I know next to nothing about it. That said from your descriptions that fighting style with claws really does suit Naruto or Azumi in this case. So to me it was a good move. Also I think it is fine for them to start being a little more intimate and not just Azumi having her fun when he is asleep. Age wise so long as they don't go all the way I see no issues with it. Though I think maybe you should reveal some of his fake history to her so she knows unless he gets strong enough he can't have kids. I think it is better to let her know that before they go all the way. As for his real history maybe let her know once they reach a point where everything else is resolved. By that time the relationship should be strong enough for it to be believable that she accepts his reasons for keeping it a secret from her. Plus she is basically a Yandere so as long as they are together everything else becomes secondary to her.
author san is this going to be a harem? i dont personally like them but meh if it is am reading it anyway..... also they are like 12/13 considering that kids grow up soooo much faster in that world it's weird they didnt make out till now............ also as for her fighting style, it's cool but not being able to do jutsu's is kinda not good, unless she gets a godly chackra control that let her use her jutsus without handsign, using this style of fighting would be a useless drawback