If you want to talk about grades, it must be "The Eternal Emperor" by Flying Fish. His hierarchy is divided into four parts: yellow mirror, mysterious mirror, polar mirror and celestial mirror. Each polar mirror is divided into seven grades: early, middle, late, minimum pole position, middle pole position, maximum pole position and dzogchen. After these four realms, the dragon has changed nine times. The Nine Changes of Fish Dragon are semi-saints after passing the ninth grade, and semi-saints are divided into nine grades, and then saints, namely, upper mirror, middle mirror, lower mirror, yellow mirror, thorough mirror, heaven, true saint and most holy. Then there is the holy king. The holy king is divided into one step to nine steps, the small world of rules, the big world of rules, the mirror of Tao, and the shortcut to heaven. Then there is the Great Sage, which is divided into fairy mirror, baccarat mirror, thousand-question mirror, eternal mirror and supreme mirror. The peak of the ultimate mirror can be called a demigod. Then there are false gods, which are divided into three classes, and each class has three small classes. The first kind can fight against the true god. Then there is the true god, that is, the realm of heaven, which is divided into lower, middle and upper levels. Then there is the Great God, also called Tai Zhen Jing, which is divided into Taiyi mirror, Taibai mirror and Taixu mirror. The peak of the Taixu realm is the threshold of advanced and higher level, and it is the best level of God. Infinite mirror can be divided into calling after passing the sky (the deity of God), calling after staying in the sky (celestial level), and sacred celestial level (peak sword ancestor, peak great honour level). It looks really cool and has many grades.