Before we continue the story, let me explain about the power level mentioned on our protagonist's grimoire.
Lv 1-10 (Mortal Realm): Focus on individual growth and personal development with the power level still on the scope of mortal realm. Newly awakened people typically started at level one, but for the genius or talented people, and also for those who are born with golden spoon in his mouth and fed various heavenly treasures and earthly wonders since birth, it is not strange if they can reach at most level five when they have just being awakened, being able to tear apart an adult elephant with their bare hands!
Lv 11-20 (Extraordinary Realm): Capabilities exceed typical mortal lifeforms, with exceptional talents and skills emerge. As the name indicates, this realm transform the ordinary to become the extraordinary!
Lv 21-30 (Supernatural Realm): Interaction with realms beyond the extraordinary, reaching out from the scope of natural explanation. Starting from this realm, many ordinary people can start to possibly awakens various kind of supernatural abilities. Of course, for the talented, heaven's chosen genius, they might develop some supernatural powers when they have just been awakened!
Lv 31-40 (City Realm): Starting from this realm and above, one started to have their powers grown off the charts. As the name states, those in this power realm can destroy one or more city with a single attack.
Lv 41-50 (Nation Realm): A single attack from this powerhouse can destroy an entire nation, kingdom or country.
Lv 51-60 (Continental Realm): A powerhouse in this realm can casually wipe out an entire continent with ease.
Lv 61-70 (Planetary Realm): To put it simply, this is a literal World Breaking Powerhouse. Anyone in this realm can survive in the vacuum of outer space without any external helps.
Lv 71-80 (Galaxy Realm): Capable of destroying an entire galaxy with a casual strike.
Lv 81-90 (Universe Realm): A Being on this realm can affect an entire universe with their actions.
Lv 91-99 (Multiversal Realm): A Transcendental Being with power that can span across multiple universes.
Lv 100 (Absolute Boundless): A True Ultimate Being with Limitless Power that can reach Infinite Multiverses. In this World's Novel, since the time immemorial, there are only six beings who have ever reached this level across the long aeons. Each and everyone of them have developed their own multiverses, so they have nothing to do with the current worlds.