Suterareta Yuusha no Eiyuutan - Story 2-2:『Fate』

Kyle broke free.He finally punched that guy in the face!But yeah, in return, he and his cronies would beat Kyle to death. Kind of a bad deal, but screw them anyway!He didn't regret punching this guy even once!However, just when Kyle was getting his face pushed in, a powerful Magic Lady intervened and offered him a job. Bit of a weird time to recruit someone, but sure.What was his job?He had to go to a different world and become its Overseer, whatever that meant. This entire deal seemed a bit shady.A world where one person can fight thousands of people.A world where gigantic beasts shattered mountains.Sadly, Kyle was just some random guy. He couldn't shatter mountains. Hell, he could barely fight a single guy.Well, that just meant he had to grow more powerful.And during Kyle's stay in that world, he would realize that he really liked the feeling of breaking stuff with his big hammer.Join Kyle on his journey to become the Strongest Hammer God.

[Host, host, I am the System, I can help you conquer the world and the witches with various personalities.]Xi Mu: Hmm... Isn't this an action game? When do we start slashing?[Right... This is an action game, but I suggest that the host also try to seduce the witches along the way, there are generous rewards.]Xi Mu: What rewards?[Of course, the perfect romantic experience!]Xi Mu: No need, I've already played through the romance plotlines. Now I just want to go on a rampage and speedrun the game.][...]

A wonderful night, she met a lover of a lifetime.Because of the failure of her family’s business, she has always been looked down upon by others.

Even her fiancé framed her, although they had a good relationship before. On the contrary, he is a well-known rich CEO, with a handsome face and a wealthy family.

There are countless girls who want to marry him. Unexpectedly, they spent a romantic night together.

As they got to know each other better, they began to realize that both of them was the one they had 

Summary Version 1:

The mysterious boy Ling Chen is saved by a little girl as he lay on the street dying. Years later, he strikes a deal to save this savior-turned sister and enters the virtual world. In a future Earth where advanced warfare has forced nations to settle issues virtually or else suffer the consequences, Ling Chen bursts into the scene and goes from unknown to legend. Yet all is not as it seems, for Ling Chen has a dark past, and there is a greater mystery at hand behind this virtual world.

Summary Version 2:

To save his terminally ill little sister, Ling Chen enters the newly released virtual game world and joins a small gaming studio comprising entirely of women. From now on walking upon his path towards the pinnacle. An ancient, evil item almost forgotten by history, the “Lunar Scourge” helps forge his unsurpassable legend, and causes him to unknowingly step upon a path that is destined to be punished by the heavens, the way of the shura.