The Regressed Mercenary's Machinations

One of the seven strongest people on the continent, the King of Mercenaries.
He started a war to avenge his fallen family and destroyed territory but failed and lost his life.
However...

"Wow, I'm alive?"

I returned to the past, back through time.
A perfect opportunity to right my regrets and reverse everything.

It doesn't matter if people around me point fingers, calling me a scoundrel, or dismiss me as trash.
Because...

"I've got a plan."
"What plan?"
"A plan to destroy everything."

There won't be a second failure.
This time, I'll wipe out all my enemies.
...But first, I need to rebuild this damn estate.

Manhwa:

Ghislain Perdium, the Mercenary King and one of the continent's top seven, started a great war in an attempt to avenge his fallen family.

His plans of revenge were going smoothly until he was slain by Idun, who he had never expected to make an appearance. Ghislain thought he died, but he woke up as a younger version of himself from before the fall of his household.

With this second chance, he decided to fix all the wrong pieces of the puzzle and avoid making the same mistakes he did in his past life!