MTL - I Have a Store In the World of American Comics - ~ one thousand four hundred seventy-seven

Qin Tian accidentally transmigrated into a sickly body, a body with broken Dantian that was unable to practice Qigong, in another world. Fortunately, God had mercy on him by giving him a level up system. Useless? That was him in the past. Not worrying about practicing Qigong, he was now able to kill Monsters to level up. Easy! Level up when killing Monsters; level up when killing people. An unbeatable sovereign of the clan in the eyes of other people, but in his eyes, he is a glittering big BOSS.

With this level up system, he will no longer encounter any bottlenecks during a breakthrough in cultivation like other geniuses; all he needs to do was kill as many monsters, clan heads, sovereigns, world experts … to have a better life.

Dedicating his life on a road to become an expert.

- Description from Novelupdates

Abandoned at birth in a humble stable, Shirone was raised by commoners—but he was anything but ordinary. Blessed with remarkable insight, he taught himself to read at a young age. A fateful visit to the city introduced him to the wonders of magic, igniting an unshakable dream of becoming a mage. Yet, beneath the city's dazzling facade lurked a ruthless social hierarchy, where power and privilege crushed those who dared to rise above their station. As Shirone uncovers the world's darkest secrets before even coming of age, one question remains—can he defy fate and claim his destiny as a mage in a world determined to keep him down?

There’s an ancient saying in Great Ruins, ‘Don’t go outside when it’s dark.’

In Great Ruins, the disabled elders of Disabled Elderly Village picked up an infant by the riverside and named him Qin Mu, raising him up with blood and sweat. This day, as the night descended and the darkness shrouded Great Ruins, Qin Mu left home…

Become a villain undulating in the spring breeze!

That’s what Blind told him.

This is the rise of Qin Mu’s road to becoming a villain!

- Description from novelupdates

Lucius was a man born to a pair of lowly servants that worked for the Great Demon worshiping Barrom clan. Growing up in the harsh conditions of the Barrom clan where magic and power reigned supreme, he weathered though humiliation and schemes. Knowing that he wanted to be the oppressor than the oppressed, he began his conquest. Not averse to betraying or scheming, Lucius made use of his allies as mere pawns to be sacrificed.

Learning that a powerful artifact lost eons ago was hidden in an ancient ruin, Lucius betrayed and sacrificed one of his closest people, his lover without hesitation.

But he didn’t know that fate had a different plan for him and the artifact he had yearned for would send his soul hurtling across the cosmos, forcing it into the broken body of a young man called Asher Inanis. Coming to his senses he finds the world to be completely different where the magic of his previous world did not exist, but what did was ‘Gifts’.

Witness how he learns about the world, gains power and reigns supreme against all odds becoming the Demonic Sage.