Power Rankings
Ranking of the people, skills, items and world's goes like
F, E, D, C, B, A, S, X, EX
Additional symbols -, +, ++, +++.
- represents weaker than normal but not enough to lower entire rank.
+ represents stronger than normal but not enough to climb entire rank
++ represent power is higher than the rank but not enough to climb entire rank
+++ represent power which is not calculable
EG; If Rank F endurance is 10 points
Rank F- endurance will be 5 points
Rank F+ endurance will be 25 points
Rank F++ endurance will be 100 points
Rank F+++ endurance will infinite
In above example even if endurance is infinite, the other states are normal such an person With E rank strength can one shot him.
To increase one's Rank from lower to higher all stats have to be in + except some like luck or charisma
EG; If one want to increase his/her rank from F to E the conditions as follows
1. all normal stats must F+ or above
2. blessing or permission from the world they inhabit by doing ritual or quests in case of our MC
WORLD/PEOPLE RANKING:
F Rank is pinnacle of what human can achieve without any exotic energy's.
EG; Captain America, Yuujiro Hanma, Kenichi Shirahama etc
F++ or F+++ Ranks given to World's or Characters from Demon Slayer, Infinite Stratos etc.
E Rank and above is person or world with exotic energy or abilities or Items.
Strongest E Rank person can be a Town/City level destroyer.
EG; Harry Potter, Akame Ga Kill, Cavalry of a Failed Knight, Boku no Hero Academia etc.
Strongest D Rank person can a Island/Continent level destroyer
EG; One Piece, Seven Deadly Sins, Naruto etc
(SDS can be considered D++/D+++)
Strongest C Rank person can be Moon/Planet destroyer level
EG; Bleach, High school DxD, Nasuverse etc.
Remaining Ranks posted in future
NOTE:
Characters can not be higher rank than the World they inhabit, If they enter low rank World their rank will suppressed to match that of World they enter.
Also Ranks of World considered based on strength of strongest characters of the World except Protagonist or Antagonist
Weekly Power Status
-- Power
Ranking 
-- Power
stone