Bro lied about his age. Now just imagine 18 years old MC, being in love with an 11 years old kid(⊙…⊙ )
If Go really lied about his age, then he would be 13 when Aoi is 18. (Regardless it looks like a huge age gap if a minor is involved).
It has been 7 years since they met, but they only have 2 years age gap (according to Aoi).
At the present Aoi said Go must be 25 yrs old already. Hence, Aoi should be 23.
If Go really is 18, then Aoi is 5 years older than Go.
Now since I've started reading action manhwas, I've never heard of a system capable of reviving someone, this is cheating bro, at this point what can't he do .
If you like a spoiler feel free to check my reply.
He can't revive actually. What can he do is only use the money and provide quest where the rewards are resurrection but only for a day.
The skill can be triggered if the person that die is within his territory.
It is not a complete resurrection and from what I remember he only did it once.
Listen, you can't be ugly and be an asshole too, like pick one side. You should better mind the fact that your hairline is receding rather than minding Mc's business #-.-)