MTL - From White Box To Supervision - Chapter 7 Persona

The way of a Demon Lord - since the beginning of time, countless demons dreamt of it but few dared to tread on it, and even fewer reached its end. But the rarest of them all were some special demons who were not allowed to step on it, because if they were to become a Demon Lord- even the other lords would have to bow their heads. Abhorred and hunted by all, they could not do anything but hide till their lifespans came to an end. But for the first time ever, one such demon chose to do otherwise.

Follow Adrian Darkheart as he uses his special demonic power, superior intellect and innate brutality to walk the path of chaos and destruction and become the greatest Demon Lord ever.

Warning: The story is exceedingly dark and contains explicit mature and gore scenes.

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

Sam unexpectedly acquired a dating simulation game named “The Female leads Truly Loves You”. He was quickly captivated by the game, which featured numerous beautiful female leads.Crucially, it was a harem-style game where the mc could maintain romantic relationships with various female leads and engage in sexual relations with them.Just when Sam thought achieving sexual relationships with these female leads was the game's goal, the ending shocked him profoundly.When all the female leads discovered the male protagonist's love for multiple girls, they exhibited inexplicably insane behavior.True to the game's title, “The Female Leads Truly Loves You”, each one wanted to possess the male lead exclusively. The crazed female leads resorted to extreme measures, killing the male protagonist.They dismembered his body and preserved it in formalin.They decapitated him and kept his head by their pillows to accompany them in sleep forever.They drained his blood to create a specimen, ensuring they could see their beloved male lead every morning....Realizing his fate would be death, Sam chose to avoid these female leads. However, they seemed to possess magical abilities, always finding him using various means.Fortunately, Sam had a system. By thoroughly conquering these female leads, he could avoid the deadly ending and even gain enhanced abilities.