The way of buddha

the way of Buddha have 12 stages:

1-->F--> Ordinary Child

2-->E--> Ordinary adult

3-->D-->Ordinary Outer layer Marine

4-->C-->Ordinary Grand Line Pirate

5-->B--> Elite Marine

6-->A--> Pre Time-Skip Supernovas

7-->S-->HAki user & vice admiral

8-->SS--> Admiral & yonko

9-->SSS-->unk

10-->!!!-->unk

11-->!!!!-->unk

12-->!!!!-->unk

this Strength Levels thank to the true pirate king