Nox's father, Theo, was actually an anti-hero protagonist until the Night of the Slaughter.

How? Because he is one of the strongest, a dude with a dark attribute, but his waifu's attribute is holy. They have an overpowered lovely child, which is Nox, but you see, after Nox's mom died saving him, Theo becomes a villain from a gamer's perspective, although he didn't. He has done a lot of crazy things for the empire, just like an antihero. His heroism ends with his wife's death.

Now, until Yoo Chan possesses Nox, Nox remains a villain in every round of the games. Because there was no one to guide this poor soul, and not only humans but also the archdemons were afraid of him. And so, he meets his brutal ends every time.

You know what? Nox is actually the strongest hidden piece in the game, I mean the strongest MC that can rival any talent; that's how powerful he was, and his mom believed in him, but I'm not gonna spoil anymore because his mom, before dying, erased his memory for some reason. And he never gained that back, never until Yoo Chan from the other world possessed him.

Now, you see, as a gamer, Yoo Chan completed the game 27 times with different types of MC, but after possessing Nox, it becomes clear that Nox's potential is actually the best on the continent. His illness is another topic. Well, that's to be expected from the child of the strongest swordsman and his holy wife who's also shrouded in mystery. And his mom believed in his potential; it was something like she believed that something that only Nox can achieve and no one else can, and it was something like a prophecy, I believe. That's why he is regarded as a rascal, not because he's actually a rascal but because his mom wanted to keep him safe from others until he grows up because his powers were that great even when he was a child, and that'll definitely gain attention.

Anyway, so yeah, long story short. Nox's father, Theo, was the previous anti-hero of the story. After his wife's death, Nox became the protagonist. That's kinda interesting, I'd say.

MC despised his bloodline and always telling reader that he was willing to discard his family. actually no... MC was still using his family sword art eventhough he could invent a better swordart. MC bragged all the time that he was a genius and could steal all technique. but eventually MC still waste a lot of precious life force to learn the very family swordart that he despised. why waste your lifeforce if you could get similar power by just invent your original technique?

MC even waste his own precious lifeforce to get a cursed sword heirloom. (because all villain MC need that). what I dont like is MC would agree to discard that sword if his father demanded it. I mean he wasted months of life for something he didnt consider important. luckily his father never actually took that sword to messed MC up.

MC got a demon horse but he never use them even on dangerous situation. I thought some equestrian battle would made some good impression on MC followers but his op horse only served as a decoration. I want to see how his demon horse kicking or slamming the enemy.

MC also went chuuni, and wanted to be a protagonist as well as villain. I mean he had an adult soul, if he was scared of his life, why bother what protagonist should do? just let the side characters to fix their own problems. its not as if you can only help by become a protagonist. theres several occasions MC could get rid of his problems by kidnaping some villain. but MC need to acts as a jerk but still kind to everyone.

thats all bad but still fine until one incidents happen. the core of MC ability to stay alive is an artifact to absorb life from killing creatures. But later MC catching a hot demon girl and still got the huge lifeforce. killing is not the same with kidnaping. I know author want a hot demon girl but thats not how the artifact works. this is what cost author 1 star