In the all infinite and unlimited multiverse and the universes in them there has to be some protagonist with 'system ' and these systems are the tiny, tiny bit of the main system the omnipotent system and this system now is floating in void of Omniverse to find the suitable host or he already has but is waiting for perfect timing.
System: '' The system detected master, going to master universe in 3_2_1..."
In the k-666 universe in planet earth, this earth has gates which connects them to demon and another realm monster and this gates came to earth around 150 years ago and the 1st wave of gate was easy and we can solve it with earth weapons but its not last long because the 2nd wave was brutal monster as gaint as 3 story building came out of gate and cause destruction and it carried out for six months because the monster came but its come with a energy that mix with our earth atmosphere and with this energy some large amount of people started "awakening" superpower and super strength and the later this energy is called "mana" and white this the onse suppressed human start attack monster and saved some large human territory and then the law of jungle started... (This is the background of the world, I hope you like it..)
In the sun city, at Evening 7:47 pm in the house balcony of a particular boy, This boy name is "Alex king star" and this boy is sad today because today is the date of his parents death anniversary and his parents died in gate break , he is orphan at the age to 5 and misses his parents very much so today he is drown on his alcohol and looking at stars but one particular star is shining brightly today and it's seem to heading in his balcony direction.
Alex: "W-what is this, the shooting Star I must pray for me to became strong".
The star is coming Closer to closer to Alex and then...
System: "Founded master.. merging with master soul...
[1%]
[19%]
[50%]
[80%]
[99%]
[100%]
System merging successfully"
System: "hello master"
Alex heard a sweet lady voice is his head and looked around but no one is seen in his house so he shout "who is there?"
Then he suddenly here system saying: "master I am your system "