don't know about update stability and background much.What I know and can guarantee is that you should read it for the supporting characters.They are the ones who go through character development and honestly if you ask me who do I like in 70 chapters i have read them top 3 would be them,no place for mc or fl(they are lot much important,i believe in extra supremacy).One thing to note is that author is bad at maths and when I say that I mean he is very very bad ? at it.Maybe system is only supposed to show your natural growth or facilitates it a bit in normal case and give gifts when you achieve something.I am again telling you don't take numbers to heart just forget them.
