Readers are having problems with understand different between realm and what is the logic behind Kai level skipping principle.I will only explain it till Saint realm as a fight against a saint level magic user is coming up.
$ FIRST POINT.
Just like i said in previous chapter at beginning of the novel.
Kai with his tyrannical body fought against all magic beasts and defeated them.
He had tyrannical body because of large amount of uncirculated concentration of magic in his body. Which was strengthening his body to abnormal level of body of saints.
But after Kai become a magic user all that magic power started circulating and now Kai body is no longer strengthen automatically instead he had to use his magic power to strengthen them consciously now but still it has some limitations because his body now is that of a mortal.
(Exchange tyrannical body for magic power that what Kai gain and lost)
$POINT 2
Kai has 10 magic origin and every one possess their own magic pool and a basic magic pool is also present in the middle which shows Kai true magic realm.
Every magic origin in Kai body increase his magic power by 10times. So the total increase is 1,000,000,000times(note only when he uses non attribute magic) multiple by his basic magic power of that realm.
but if he uses any attribute magic he will only get 10times magic power a.s.sociated with that particular magic origin.
Every time he breaks through he reaches peak of that realm.
Kai when become a magic master he possesses 1,000,000,000*1000= 1trillion magic which is equal to peak magic Emporer.
In grand master realms it increased.
1,000,000,000*10000= 10 trillion beyond magic Emperor
this amount of magic is abnormal but he can only use it when he uses non attribute magic which is not a.s.sociated with any ranking of magic division.
(you guys know 13rank of attribute magic division)
#like strengthing his body to half step transcend stage(before he Breakthrough transcend stage)
#uses it for magic rune and circuits.
#Crafting, strengthening and enhancing weapons and magic items.
#casting non attribute magic etc.
(Currently Kai don"t know any attribute magic till chapter 65).
All these factors allow him to become invisible in mortal stage but what about fight with transcend stage magic users.
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After losing his tyrannical body Kai only can use his magic power to create a false image or release pressure which is created due to magic power posses by him this allows him to cancel all shots of pressure, aura and magic power suppressed caused by any stage of magic user.
$POINT 3
Transcend magic and body both possess power of law which they use unconscious and have no control over it.
If Kai want to fight a magic user of transcend stage at mortal stage He will have to use his 99.99% to overcome the power of law and 0.01percent can be used to cast a rank 4 magic.
No magic of mortal rank can cause any damages to transcend stage magic user.
Kai will have to really on his abnormal ammount of magic power to overcome magic laws and fight with a transcend stage magic user. Don"t forget non attribute magic is not divided into rank but still it is limited by magic laws.
(Note: all transcend stage magic user are currently under suppression of world barrier).
$ POINT 4
Currently Kai is insect before Jai.
Jai has a saint level magic user posses full control over Power of law and can use rank 7 magic but under world barrier supression can only use magic of rank 6 current. but still he is one of the invisible existence in current world setup. he possesses saint level body.
(All of these are made on bases of chapter 1-65)
I wrote it to tell you guys that don"t take magic laws are there for nothing. Even if you possess vast amount of magic power you can overcome difference between mortal, transcend, Saint and divine easily without paying fine for it. Laws are very important in this book.
This is also the reason Kai needs to Breakthrough to transcend realm to fight Undead Emperor.
Undead Emperor is a saint level magic user right so how will he fight such a guy?
Current world setup don"t have a single true saints magic user.
You know a saint level magic users cannot cast saint level magic currently.
Undead Emperor is even low cla.s.s then that.
(If you guys still have some doubt you can ask me by commenting me)
I hope this will bring more clearly to your understanding.
Thank you.