MTL - The Upgrade System of All Realms Starts From Conquering Naruto - Chapter 18 Rasengan, you are mine

He was the continent’s strongest and most revered alchemist, Ye Zifeng. He was under one person and above millions. However, due to an unpredictable event, he had died. After his rebirth, he had become the supertrash of the Ye family and suffered disgrace. To make matters worse, he had an argument with his fiancé that led to the break off of his engagement. In this second life, he will work to change his own destiny. He vows to return to the peak of the world, trample on those who laughed at him and rewrite his legacy!

- Description from Novelupdates

Gu Qingcheng has a fiery temper and is a well-known little princess in Jiangcheng, and she has a good boyfriend who spoils her to the sky.

Only her boyfriend’s cousin, Huo Sicheng, opposed her everywhere, and the two were notoriously deadly rivals.

However, at the engagement banquet, when Gu Qingcheng regretted the marriage in public and announced that she was going to marry the disabled Huo Sicheng who was in a wheelchair, the jaws of all the guests dropped in shock.

Just when everyone thought that the couple would fight to the death in private, guessing that either one of them wanted to keep their husband widowed or the other wanted to keep their wife widowed, but the fact is…

“Husband, I’m stuck in traffic and come back a few minutes late. Open the door and let me in.” Gu Qingcheng knocked on the bedroom door with a pitiful expression.

“Sleeping in the living room.” Huo Shao’s indifferent voice came from the room.

“Honey, someone bullied me today.”

The person who bullied Gu Qingcheng disappeared the next day.

“Honey, they all say I’m so fierce.”

Huo Shao glanced at Gu Qingcheng, and opened his thin lips lightly: “They are talking nonsense, you are not fierce at all.”

From then on, Gu Qingcheng set fire to Huo Shao and handed firewood, Gu Qingcheng abused the scum and Huo Shao handed the knife, and the husband and wife worked together without getting tired.

Only Gu Qingcheng knew that before her rebirth, she was provoked and misunderstood by a scumbag to misunderstand Huo Sicheng. After her rebirth, she abused the scum and slapped him in the face, and loved Huo Sicheng with her life.

- Description from novelbuddy

Su Yun was a prodigy, blessed by the gods. However, life is never so easy. Soon after reaching 6th stage in spirit novice realm cultivation, his progress stagnated due to incurring a rare medical condition.

A few years go by, and Su Yun has spent all his time gambling or drinking, wasting his youth away, but one day everything changes. Qing Er, the only one who stood by him was forced by his clan to be a sacrificial bride to someone she didn’t love, only to be executed by the groom on the wedding night for fleeing. Burning for revenge, he scoured the world for a cure for his rare medical condition from both righteous and villainous side.

Countless years go by, and finally Su Yun not only found a way to cure his rare condition but also gain immense knowledge on a myriad of martial techniques.

But before he could fully cure himself, he received news that the groom suffered an assault that damaged his internal organs. Rather than wait for decades to become fully cured, Su Yun decided to hatch a plan for the assassinate of the groom. Unfortunately, he underestimated the strength of the groom’s family and was killed instead.

Then he regains consciousness. He comes to a realization that he went 15 years in the past. This time, he vowed to protect Qing Er, but first he must cure his rare medical condition. Will he learn from the mistakes of his previous life or is everything still set in stone?

- Description from Novelupdates

Jin, a hardcore gamer who still lives with his mom at the age of 24. He could never hold down a steady job since graduating, his girlfriend since high school dumped him for his best friend and he's constantly getting beat up by a group of local gang members. His dad left him and his mom when he became rich from the lottery and got a new family, one free of debt and burdens as he called it. His mom works 3 jobs to keep everything from falling apart, except for herself slowly. One day on his way home with the very first and new fully immersive VRMMORPG called Realm of Myths and Legends or RML for short, he died from a hit and run car accident. RML was advertised as the worlds first fully immersive VRMMORPG, allowing for players with skill sets in the real world, like sword training, martial arts, archery or reaction time, to benefit in the game itself! Though Jin died and at that moment a soul from another world crossed over into his body and inherited his memories. The man known as Izroth once hailed as the greatest cultivator in the seven realms, soul reincarnates into the modern world year 20xx in the body of Jin.