DxD - Multiverse: Daily Life Of The Sephiroth Hero - Chapter 47

MC (female protagonist) dies in a plane crash and wakes up in the body of a beautiful but corrupt and lascivious prime minister in ancient times, Zhang Qinglian. As circumstances decree, he (she) cannot reveal that the original owner’s soul is gone else calamity might occur. So he (she) decides to walk a righteous path, determined to help the lovely but simple little emperor rule the country. Not backing down after facing torture, not losing courage, destroying rebellions and facing off with scheming princes.

Jacob Steve, an Old Man, died at 116 after living a whole life.

But Jacob always had a dark side, which he always suppressed and hid from others.
However, in the later years of his life, when death was inevitable, he understood there wasn't any point in having wealth, knowledge, or desires if you couldn't have a life to enjoy them.

He became obsessed with fabled immortality and devoted his reaming life to extending his fleeting lifespan, but just like any other failed.

However, he mysteriously got another chance at life and found a way that led to fabled immortality.
But he was also forewarned that the way led to it was filled with blood and darkness!

In the end, Jacob chose it anyway with no way of going back, and it was also the start of his suffering and his icky, brutal journey toward the 'Immortality' he wanted so badly!

Linky transmigrated to the Magical Land and became the third young master of a noble family. Just when he thought it was time for him to enjoy a life of luxury.

He was sent out for the family’s tribulation, and had to set off to the “Land of Death”

— Black Wind Castle! Here, dark elves, frenzied orcs, and blood-thirsty dragons were regular occurrences! Everyone thought that Linky would surely die, and had even prepared to collect his body.

But just then, Linky awakened the [Super Gourmet System]. As such, things changed.

The Elf Queen loved his fruit salad, while the Orc Saint couldn’t get enough of his grilled steak. The Sorcerer of the Holy Palace couldn’t live a day without the “Linky Brand” whiskey.

Even the Vampire Prince Nikolas would sacrifice anything to get a long-term order of Linky’s fresh blood coffee.

Until one day, when a gargantuan dragon that blocked out the skies came to his door…

The Immortal Path led to Longevity and Sovereign was heading in ease. When the Longevity was no longer in ease, all living beings were just prisoners. Conspiracy, internal strife, and the invasion of the others, all of it emerged together. 

In such a world, there was such a young man. He made his way upstream, stepping on blood, defying the emperor, destroying the various kings, and slaughtering his way through the hundred clans to form an Immortal Path towards the throne of Sovereign! The Immortal Path was endless, while the Sovereign was limited. He used his blood to forge his immortal legend.

- Description from Novelupdates