first Author remove the line I have to protect my sister and family.
that is way to old .
otherwise many reader gona complain about that .
everything was fine before you add family drama .
don't add family drama and family protection type MC .
that's all I will say .
Trying to play lone wolf hunting all the time is dumb as.
Give the boy a team! Can his system upgrade other people? Can his teammates kill things and give him points?