I forgot a detail and what should I do?

ok, so while writing this, I decided to reread the manwha, but I noticed that when the kids awaken, they get a tattoo of the spirit soul on there hand. so I can do three things. 1edit the 1,2 chapter two include that when the children awaken. 2 just not include the tattoo. 3 explain that the tattoo shows up at essence level 10 and that it didn't have enough essence before?