MTL - Marvel: Starting From the Dimensional Demon God - Chapter 48

Going against the heavens, Tuoba Ye reincarnated. Body concealing Divine Root, hands holding Divine Talisman, possessing previous life’s experiences, from childhood, began cultivating the most difficult body refining method: Mythical Nine Transformations.

- Description from Novelupdates

Pablo Castillo was the worst, the evilest, the biggest criminal in the whole world. He was the ominous figure known as Criminal X.It’s a name that sends shivers down the spines of those who utter it. His past, a mysterious enigma, shrouded in darkness, only adds to the legend of the world’s most notorious criminal.However, Pablo’s reign of heinous crimes comes to an abrupt end when a specially trained military force, an elite group made especially to capture Pablo, finally apprehended him.The capture of Criminal X sent shockwaves around nations, for this man had defied all laws and moral boundaries. The world watched as he was brought to the highest court to face the consequences of a lifetime of malevolence.The International Court of Justice, in a bid to administer justice that matches the magnitude of his crimes, bestowed upon him the most excruciating execution ever conceived.The world erupted in celebration as news of his demise spread like wildfire. An international holiday was declared, a day of liberation from the tyranny of Pablo Castillo. The day was named with triumphant fervor. They all called it—World Independence Day.Pablo Castillo was a man so evil that even the kindest of Gods couldn’t find pity for him.But… Some Gods needed that man. That too, Desperately.

Takumi Hirooka(20) works at a black company. He stopped at a convenience store before returning home, and then gave his beloved dog Leo a treat before eating his own dinner that he bought at the store.

After eating, Takumi stood up in order to take a bath, but due to exhaustion from overworking, he fell to the floor and lost consciousness.

When Takumi opened his eyes again, he was in an unfamiliar forest. But what he thought was a large wolf sitting next to him, was actually his dog Leo…

Leo was now big enough to carry people on her back, and could defeat monsters that appeared in the forest in an instant.

A woman they meet in the forest, Claire, tells them that Leo is the most powerful of monsters, a Silver Fenrir.

Takumi couldn’t help but think that this world was all a dream. But after speaking with Claire and witnessing Leo’s strength, he finally realizes that this was another world that he had come to.

They are invited to Claire’s great mansion, and Takumi eventually lives there.

The young man Takumi and the dog Leo who were somehow transferred to this world.

As the powerful Silver Fenrir, Leo will protect Takumi.

While Takumi discovers that he has a gift, it is an ability called Weed Cultivation.

…Could such an ability be useful?

Takumi was tired from so much work, but he uses his ability to live with Leo and Lady Claire. This is his story.

He Lang died by his own hands for the sake of his imperial younger brother’s ambition, whom he loved. He was offered to be reborn in exchange for giving up his past romantic feelings. Reborn without the burden of his romantic feelings, he brings with him a manual to new worlds. He wholeheartedly followed the instructions of the manual to complete the tasks, not knowing that the originally slag gong was blackening…
He pleaded to his affectionate Emperor brother to release him, he pleaded to the paranoid prisoner next door, but until the end he remained baffled.
In the end, he discovered that the full name of the manual was – “Slag Shou Cultivating Manual”
Σ (っ ° ° °;) っ!

- Description from Novelupdates