@E--JIROU Honestly I'd rather 0 incest. These "My parent got remarried and now I have a new sister/brother" are always romance for some reason! I've never seen a single one thats a good heartfelt "Lets learn to be siblings and have a happy family" I would love that.
I kinda like the fact he isn't super overpowered all the time (As of now) it gives some actual stakes when he can run out of ammo or when his guns aren't strong enough to kill certain enemies. The cost benefit of his gear is an interesting concept.