(American police + daily life + gunfight + promotion + mature woman)

Arthur Morgan is reborn in Los Angeles and discovers he has a Red Dead Redemption system.

He was once the King of Fighters in the West, the King of Widows in the West, the King of Hunters in the West, the King of Hello in the West...

Now it possesses the Death Eye, Widow's Affinity, Tracking...

Having been given a second chance at life, I will not be a bandit but a policeman. My goal is redemption and to save as many widows as I can.

Having spent many years in Naruto, he diligently trained, but due to his ordinary talent and lack of system assistance, he could only become an ordinary special Jonin of Konoha. This was probably the pinnacle of Gen Takuno's life. But... Gen Takuno looked at Hiruko, who was attacking Kakashi who had just obtained the Sharingan. It seemed that everything had reached a turning point in his fate. Oni-Garra Technique!

[System Message: World Line Initializing... Alteration Rate: 0.001%]

Su Li stared at the scene unfolding on the massive public monitor, a stream of curses catching in his throat. Of all the places to be thrown into, it had to be Island Iffish—right at the dawn of the One Year War. Was this some kind of cosmic joke? Was fate itself trying to get him killed?

But then he discovered a secret: he could alter the very fabric of this world line, reaping incredible rewards for every change he made. From that moment on, the legend of the "White Devil" was destined to be rewritten.

His enemies could only cry out in disbelief, "What in the world is that Zaku?!"

Su Li would just grin, his voice cutting through the comms. "Hey, Red Comet! You think you're three times faster? Then prove it and get over here!"

Cheng Mo's life fell into despair.

My younger sister is seriously ill and her studies are on the verge of collapse...

Until he picked up a mysterious compass, his life took an outrageous turn——

Save Nezuko, accept Tanjiro as his apprentice, and get involved in the dispute between the Demon Slayer Corps and Muzan...

"Wait, didn't you agree to just be a profiteer?"

"My Lord, let's discuss business. I'll sell you penicillin, and you'll teach me breathing techniques, how about that?"

"Ms. Tamayo, I have a report on modern genetics. Would you mind using some of my blood to study it?"

"Muzan? Oh, don't run away with that moving gift bag of time and space coins!"

Cheng Mo just wants to resell resources and make enough money to save his sister.

When he looked back, he discovered that he had already held the authority of countless worlds and became the largest behind-the-scenes supplier in the heavens!

Tanjiro: "Teacher, what is the 'currency' of this world?"

Cheng Mo: "It depends. Maybe it's a devil fruit, maybe it's chakra, maybe... the future of a world."

(This book is also known as: "I Resell Supplies in the Heavens" and "After Accepting Tanjiro, I Became the MVP of the Demon Slayer Corps")

Many years later, facing the disaster that swept the world, people couldn't help but recall the day when the Rocks Pirates collapsed. At that time, everyone thought that the world would return to order, but it was not until much later that people realized that a real monster began to devour the world from that day. Roya, who traveled to the pirate world, accidentally gained the ability to transform into Qiongqi. Qiongqi is a fierce beast that accompanies natural disasters, so he can create natural disasters; Qiongqi is an evil beast that punishes good and promotes evil, so he can control man-made disasters. As a result, the world ushered in a real disaster. "Sorry, I'm not here to bring peace to the world, I only let the world use swords." Roya said. Everything started with an intern in the Rocks Pirates.

[Ding! Please report to the True Central Spiritual Arts Academy immediately to activate the system and begin your legendary journey to becoming a Spirit King!] Hearing the inexplicable voice in his mind and seeing the words appear before his eyes, Qingliu subconsciously looked around. He saw several ninjas wearing green vests and Konoha headbands, and couldn't help but be confused… “System, are you sure you're not mistaken?” [Ding! This system is correct. Please report to the True Central Spiritual Arts Academy as soon as possible!] “???” Good news, he'd transmigrated and had a system. Bad news, the system was from the other side, and the activation conditions were also from the other side. What to do? This is too unreliable! Until one day, just as Qingliu stepped into the gates of the ninja academy, a 'ding' suddenly sounded in his mind… [Ding! Detected that the host has arrived at the True Central Spiritual Arts Academy, becoming…]

There have been constant disputes since the beginning of the prehistoric world, and countless gods have been fighting for the great way.

Wang Chen was born in the boundless starry sky and became the innate sacred being nurtured by the Purple Star.

As a soul that traveled from Blue Star, Wang Chen looked at the boundless starry sky and decided to take a path that was different from other gods in the prehistoric world.

The stars will be opened up into small worlds, and countless creatures will be born from them. The great Dao that each creature comprehends will become Wang Chen's nourishment.

[No System, Commoner Style] Traveling across the Douluo Continent, Jiang Yi, born in a small seaside fishing village, is fortunate enough to awaken his Martial Spirit, the Grey Water Snake, but his innate Spirit Power is only Level One. His initial dreams were simply to become a Soul Master, marry a beautiful female Soul Master, establish his own Soul Master family, and live a happy life in Notting City...

Across the Black Basketball Team, he became incredibly powerful, joining the same class as Shuzo Nijimura and the Five Uncrowned Warriors. Assisted by the Slam Dunk mobile game system, Shigure Akito and Shuzo Nijimura had already led Teiko to the championship before the Generation of Miracles joined the team. And then… the head start advantage of a year behind him was fully realized! In the second year of junior high, the Generation of Miracles blossomed one after another? Having gained an extra year, Shigure Akito declared, "Fujima Kenji's 'Green Light,' Maki Shinichi's 'Imperial Consciousness,' Miyagi Ryouta's 'Lightning Flint'... I've blossomed more than you!" In the first year of high school, the Generation of Miracles advanced even further, even unlocking the ultimate 'zone'? Having gained another year in high school basketball, Shigure Akito declared, "Your seniors are still seniors! The legendary Rukawa Kaede's 'Ghostly Aura,' Mitsui Hisashi's 'Burning Flame Man,' Sakuragi Hanamichi's 'Glorious Moment'... Sorry, even in high school, all the championships were mine, Shigure Akito!"

Good news: Born with supernatural powers, a super martial soul, innate full soul power, a ten-thousand-year inheritance, and the beginning of a top-tier sect's heir. Bad news: A life-or-death struggle with an academy that's as shabby as a broken house (?), and sixteen years until the God King Tang's mechanical deification, bringing Huo Yuhao to his knees. "Damn it, I'm going to have a fight with the God King Tang. Either he kills me, or I beat his soul out of him!" (Anti-Tang San, Anti-Shrek, Non-Zhutian, Peerless Tang Sect fanfiction)