You can say the more they recover from their soul injury the more the golden color fades away from their body. Naturally at this time Leo and the others don't know the condition of those people but they also already predicted something like this while at the same time Alex just continuously looked at the system screen. In the system screen he could already see that in just 1 hour the recovery rate of those people already became 70% and most likely after sometime later it will already become 100%.
Naturally the good thing was that those people did not even need to drink the whole bottle of those soul recovery Potions. With that you can understand the power of those Potions that he got from his system shop or you can say his game shop but at the same time he is naturally also very interested to know what will happen to those fighters who are already very close to losing all their memory and becoming a part of the world tower.