Leon Arden always had a single dream: to open the largest library in the kingdom, no battles, no wars, just a peaceful place where he could read until he died of old age. Unfortunately, fate had other plans.

It all started when he accidentally helped a group of mercenaries escape from an ambush, how? He just wanted to deliver a book that one of the men had forgotten in the library! But what the others saw was a calculating strategist who saved an army with coldly calculated moves.

The next day, rumors spread:

"The Brilliant Mind of Bloody Night"

"The Master of Shadows"

"The Emperor of the Silent War"

Leon? He just wanted to know why people were looking at him as if he were a God of Death.

Trying to escape this misunderstanding, Leon decided to leave the city, but he was captured by the rebel army.

- "Please, I just want to go home"

- "Incredible! Even as a prisoner, he retains his cool, calculating dignity!"

Forced to join the rebellion, Leon is put in command of a . He tries to lose battles on purpose, but his mistakes end up being seen as brilliant strategies.

- "He's left that side of the field unguarded... it's got to be a death trap! Fall back!"

Thus, without meaning to, Leon becomes a legendary commander.