"Vitality, [...] A power that uses the life force as a basis. [...] However, even after becoming a 'skeleton', I still have my memories and equipment from when I was human... Which means I can use 'Vitality'."
Well that stupid alright. So the dead now can use fecking LIFE FORCE to fight? Shouldn't it then be really easy for the living to be immortal or eternally young? Or since you're one of the undead, as you do not tire, shouldn't you become a murder machine? And really, defeating 5 skeletons in 2 days? You just showed that you could slaughter a group of those in a few minutes, what are you doing with your time? Being a Skeleton, you shouldn't be able to jack off, so how are you wasting it so efficiently? Though since he can use "life-force", maybe he can grow himself limbs, I wouldn't be surprised to get that explanation with how things have been going so far...
I shouldn't have had hopes for this, it's the kind of read that will be enjoyable if you don't think about it and simply go with the flow. Let's see where it goes.