MTL - Tempest of the Battlefield - ~ 632 Heart of Fire

In a world where Taming Beasts determine strength and destiny, Leonhardt Valtara is reborn as the heir of the most feared villainous family in history. The Valtaras are ruthless, powerful, and utterly devoted to their own—especially to Leonhardt, their beloved son.But his greatest surprise?He is married to Celestia Nightshade—the Number One Villain, a peerless beauty, and the most genius Taming Beast Master of her generation. Feared by the world, Celestia wields unmatched power, yet behind closed doors, she is the most doting wife, willing to burn kingdoms if it means protecting Leonhardt.However, fate has already written his downfall.The original protagonist, Rael Ascarion, a rising hero, is destined to gather allies, defeat the villains, and restore “justice.” By his side is Evelyn Astralis, the heroine meant to love him. According to the original story, Leonhardt and Celestia are fated to lose.But why should he follow a script that leads to his destruction?With his reincarnated knowledge, Celestia’s overwhelming power, and his first beast, Ironhorn, the Indomitable Rhino, Leonhardt will crush fate itself and carve his own path.If the world wants him to be a villain…Then he will become the greatest villain of all time.

Here hundreds of countries compete for supremacy, here hundreds of schools of thought flourish, he brings the strongest family head system, establishes the most powerful family, and steps onto the highest stage step by step!

The scum’s or villain’s long road of transformation was tentatively set to the world:
The abandonment of the educated youth’s wife (Completed)
The hidden marriage of the scum film emperor (Completed)
The best brother in the world (Completed)
The Phoenix male who destroy the bridge after crossing the river (Completed)
The treasonous general (Completed)
I’m an honest man (Completed)
To become the top scorer in the School of Agriculture (Completed)
The soft rice man’s self-cultivation (Completed)
The whole world is reborn (Completed)
I want to survive on a desert island (Completed)
The stallion male who has seized the opportunity (Completed)
The perverted self-salvation (Completed)
The spring of the loafer (Completed)
The misplaced life (Completed)
The miser career (Completed)
The ghost is out of feeling (Completed)
The Queen’s favorite husband (Completed)
The vicious girl with her godfather (Completed)
I want to be a good person (Completed)
I does not tear up the family (Completed)
The perverted common plant (Completed)
The Mary Sue’s men (Completed)
Every time I was reborn, someone wants to kill me (Completed)
The old people’s counterattack path (Completed)
The global evolution (Completed)
When I became a net red (Completed)
For you, good person (Completed)
His heart had white moonlight (Completed)

- Description from Novelupdates

Riku Barusak is a hard-working child. Despite possessing an innate superior physical strength and having withstood harsh training she fails to unlock her talent as a spiritualist. The failure results in her being thrown away by her family.

Abandoned, the only ones that extended a hand to her were the demons, the greatest enemies of the human race. Serving under them as a soldier she becomes a weapon of human slaughter, a fiend that should never have existed.