MTL - Bent By the Male Protagonist’s White Moonlight - Chapter 28

Crossing to One Piece world, he became Roger’s younger brother.

Introduction to the Glory of the Sun God.

A life with the power of the sun, through the story of the world of Marvel.

The sun in mythology is the great existence that controls the alternating of time series, the growth of all things, the restraint of all dark evils, the master of light and flame.

The sun in reality is a member of the star. The greatest celestial body in the universe. It is the ultimate existence of magnetic attraction.

What happens when these forces are concentrated on one person.

- Description from Novelupdates

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!