Just a short explanation of setting
Alright so there are six continents,and 27 countries
Rey "The most wanted Ranker" well Rankers.....there is organization acting In all Countries, the people who join that organization are called Rankers simply because everyone there are in ranking (about million people are rankers)
Ranker can kill another Ranker and it won't really be a big deal, Organization doesn't care for some strange reason...
Runkers all get Atleast one mission in week from F to S, F being casuall and easy thing like finding a lost pet
And S beating a threat that can destroy A Mountain without any problem
The Ranks in that organization are from 6 to 0
Technology in that world isn't that advanced, tho
But the more important thing are the four great families:
Mori
Erya
Rezna
And....nah I won't tell
Anyway power system... I will explain it later on but its pretty simple i think