MTL - I Became Invincible After Sweeping The Floor For 70 Years - Chapter 723 found it

Every little girl's fantasy is to live a wonderful life full of riches and luxuries. This was the future she imagined, and she was willing to go to any length to obtain it.She was spoiled, pampered, and doted on by her family, and she was proud of herself. She knew she deserved the best, and she went for it. This, however, is where the nightmare began.Wanting to leave the clutches of poverty wasn't as simple as she believed, given the things she had to give up, the humiliation she had to endure, and the numerous things she had to lose. It was not worthwhile.When she thought she had it all, she was slapped in the face with the cold, hard truth: she was only a SUBSTITUTE.And when two of her closest companions turned on her and betrayed her, she was shoved aside and got humiliated by people she used to know.With nothing and no one to lean on, she was forced to make decisions. Decisions that gradually resulted in something breathtakingly amazing.[DING! SIGN IN! THE HOST HAS BEEN REWARDED WITH ******]

Kazuma and Masako are a loving married couple who run a successful indie game development studio from their cozy home. After leaving the corporate world behind, they poured their hearts into creating hit games like Mori Journey, Exaslia, and their biggest success yet, Mori Adventure. Despite their professional success, the real magic lies in their personal relationship—a mix of playful teasing, deep affection, and unwavering support.Through late-night coding marathons, romantic anniversaries, unexpected livestream mishaps, and wholesome surprises, Kazuma and Masako navigate the challenges of both game development and marriage. Kazuma is the steady, hardworking coder, while Masako is the lively, creative artist with a penchant for mischief and teasing her husband. Together, they bring out the best in each other, blending love and laughter into their daily lives.From heart-melting romantic moments to hilarious hijinks, their story captures the highs and lows of balancing love, work, and dreams. Whether they’re surprising each other with heartfelt gifts, overcoming obstacles in game launches, or simply sharing quiet moments together, Kazuma and Masako prove that life is truly a game best played with your partner by your side. Their journey is a heartwarming tale of love, passion, and the joy of building worlds—both virtual and real—together.

The scum’s or villain’s long road of transformation was tentatively set to the world:
The abandonment of the educated youth’s wife (Completed)
The hidden marriage of the scum film emperor (Completed)
The best brother in the world (Completed)
The Phoenix male who destroy the bridge after crossing the river (Completed)
The treasonous general (Completed)
I’m an honest man (Completed)
To become the top scorer in the School of Agriculture (Completed)
The soft rice man’s self-cultivation (Completed)
The whole world is reborn (Completed)
I want to survive on a desert island (Completed)
The stallion male who has seized the opportunity (Completed)
The perverted self-salvation (Completed)
The spring of the loafer (Completed)
The misplaced life (Completed)
The miser career (Completed)
The ghost is out of feeling (Completed)
The Queen’s favorite husband (Completed)
The vicious girl with her godfather (Completed)
I want to be a good person (Completed)
I does not tear up the family (Completed)
The perverted common plant (Completed)
The Mary Sue’s men (Completed)
Every time I was reborn, someone wants to kill me (Completed)
The old people’s counterattack path (Completed)
The global evolution (Completed)
When I became a net red (Completed)
For you, good person (Completed)
His heart had white moonlight (Completed)

- Description from Novelupdates

The world has changed into something like a game.

It resembles a survival virtual reality game where people were attacked by zombies and monsters.

And I was the last user of that game.