Feng Yu Jiu Tian - Volume 1 Chapter 5

A generation’s War God, once overlooking the world with disdain, had fallen into disgrace because of a conspiracy, becoming a mere son-in-law. However, what nobody had expected was that it was all part of his grand scheme, and when the winds of change blew, he, the king, returned, with the power to overturn seas and move mountains, as a dragon ascended to the heavens!

Sometimes. You face a choice in your life

“Choose. Between the two of them. Whom will you save, Michael Aroa?”

You look back into your life and wonder how you ended up here

“Michael please!! Save your mother!! Not me. Michael you don’t need to make a choice here!! Michael! I love you! I won’t hate you for your choices!! Please save your mother!!”

You question the path that you took that brought you to this point

“Son. She is your wife! She has your child. It’s not one life over another but two over one. I am already old but she has a long life. You are smart enough to make the right decision, Son, aren’t you?”

Since it hurts, you wish you could stop time and have some time to think

[Activating Ability: Temporal Pause!!]

[Activation failed!! Not enough Energy!!]

You wish to go back into the past and change everything that led you to here

[Activating Ability: Time Reverse!!]

[Activation Failed!! You don’t have the Requirements to use this ability!!]

And then when nothing works as it shouldn’t.

[Are you sure you want to use this ability?]

You make a decision that you had never thought you would

[Activating ability!]

And then... Chaos ensues

[Ability Activated]

[God Power: Time Collapse]

“Are you my knight?” The silver-haired youth looked at the blonde girl before him and asked, his cheeks flushed red. This was their first encounter when he was only ten years of age.

“Are you my bride?” He held her in his arms, embraced the girl who had accompanied him for ten years straight. He was sixteen years of age.

“Are you my king?” He knelt before the throne, smiling foolishly as he looked at the girl holding the sword victoriously. At this moment, he looked like the boy he was when they first met.

“I’m fine without having eyes for you. The entirety of Camelot is for your taking.” Smiling soft and gently, he gave his eyes to the girl who lost her eyes due to the curse of the red dragon. He doesn’t regret it, he thinks. He was twenty years of age.

“So… Arthur… Artoria Pendragon, are you willing… are you willing to spend the rest of your life with me?” His voice was soft and clear as he reached out to touch her hand.

This was their legend.

- Description from Novelupdates

Having lived a normal life all his life and died without being able to fulfill his desire and when he’s given a task by a god, watch how he takes the protagonists girls while making it hard for the hero.