Alex took a slight break as he took a look at the notifications.
He was though not surprised he was still impressed that even after this extreme beating which will kill another human not even make Nathan unconscious.
This shows how hard it is to kill this damn protagonist, System notification proves that point.
If he now tries to go any further which will have a huge chance to kill Nathan, Some rando going to pop up and somehow will be a big shot.
After that Alex had to suffer a little, As that brain-dead person would not think twice and attacked him in an attempt to save Nathan, Which made him end up getting killed as now Alex has Xiao Bai with him.
But Nathan is 100% going to escape and will encounter a thing and quickly going to boost his power. This is how the protagonist normally works but sadly for Nathan, Alex has a way to walk past this rule.
He just had to ask some questions about the system before moving forward with his plans.