Death March kara Hajimaru Isekai Kyusoukyoku (WN) - Book 17 - Chapter 17-7. Reason Behind the Taboo

In the Solarian Empire, people were divided by their blood. The nobles enjoyed their life in wealth, with fine wine and amazing food. They reigned supreme over the commoners. The only reason they were able to do this was that they had knowledge of the most powerful force in the world - magic. The nobles controlled their knowledge from easily going to commoners, making it harder for them to learn magic.

Leo, a young orphan in Solaria, had an incredibly powerful affinity for magic. He didn't even know about it because he could never learn magic- he was too poor to try and learn from any magic academies. He was just trying to survive the streets of Solhaven until he found the lost tome of the Arcane Emperor.

"I can beat a 7th Circle Mage."

"Wow! You must have trained for many decades. How old are you?"

"17."

"..."

The world was going to be turned upside down.

Regressor, Reincarnator, Possessor, Traveler, or Predestined. I will hunt down the protagonists that exist in the countless worlds and absorb their abilities.

Here lies the protagonist.

The continent’s hope.
The hero who will save the world.
The hero who currently has a hole through his chest!

With the Spirit of Earth, freed the Dwarfs and gained their trust.
Purified the contaminated Forest of Spirits and became the Fairies’ benefactor.
Resealed the Ancient Stone statues found in one of the ruins.
Exterminated the giant sea serpent that emerged from the sea.
Defeated the 47th Demon Lord of the underworld…

“Aside from assaults and murders there were other death related incidents as well as vandalism, arson, and etc…”

“S-spare me…”

Psh!

This was the protagonist.
But now he has died by my hands.

In the City of Crime, one law stands above them all: Only the strongest can live.

This is not your usual isekai novel. it has my unique world background, unique power system and i am trying it make it a unique experience for every reader. :)

Athan, a 16-year-old boy, lived until he was killed for a stupid reason. (stupid reason & more in the prologue:v)

But it seems that fate had stored different things for him as after death as he transmigrated in the magical world inside a dead body of a boy with the same name and same facial features as him.

He also found out that a mysterious black whirlpool seemed to be inside him.

Was someone responsible for his transmigration? if so then who? and why? or was it pure coincidence that he got a new chance at life?