The balance breaker

while walking through the streets Dorian felt a change in the atmosphere like the amount of curse energy being transferred to a single being. 

"oh, so I m witnessing Satoro Gojo birth"

'with this amount of cursed energy no wonder he has no mother after birth'

At, the same time a new change in form of multiple cursed spirits being created.

'this is the way the world can balance the power struggle between sorcerers and cursed spirits, but it didn't account my existing'

*Time skip*

Mars you could witness a huge slash that gone through multiple 24 kilometers mountain range, all in frond a man with golden energy blade projecting through his hand.

 'now with I have unlocked all of my ki abilities including what I didn't expect I could use hakai now Mahito wont be a problem and with my dimensional slasher Gojo infinity won t be a problem, it been five years since I left for training I need to return and work on my curse technique if I have any. when gojo reach 10 years I need to visit that guy Toji and help him a little bit with his family matter.

*three years later*

a young looking man is in front of jujutsu high going strait to the main building.

Masamichi Yaga was going with his day when a young man entered his office.

"hello my name is Asahi Ito and I want to register in jujutsu high"

Yaga looked at me for a second before reading all the files that represented.

"Do you know what does it mean to be a sorcerer?"

"well it to exorcise curses under the watch of common folks"

"true, but it also our job to protect them, to do that we need a curse technique"

"ah, right I didn't mention it but I have"

from behind me a portal opened with a worm like creature with average Hight and curse energy .

looking back Yaga looked at the worm then at me.

'so, it like ten shadows technique or Cursed Spirit Manipulation but a weaker version'

handing me a card that show that the young man is 3 grade sorcerer.

"welcome aboard" 

"thank you"

leaving jujutsu high the young man just laughed and thought it was funny how he could read exactly what Yaga was thinking.

It true that the worm is part of his cursed technique but it was just a failed experiment.

my cursed technique is much more complicated, to start I call it merge, it allow me to do two things first is to turn cursed spirits to pure curse energy that can use to increase my natural curse energy or go to fun part I can merge multiple cursed spirits into a new stronger one that serve me as their creator and master, through the years I managed to create three Special Grade cursed spirits that serve me in addition I have enough crystals to get me double the amount of cursed energy that special grade sorcerers have but I saved them just to raise no attention while staying in jujutsu high.

At the same time I became the head of underworld with code name Oni.

I have unimaginable amount of influence on secret assassins' and the underworld as whole.