MTL - The Troubleshooting Diary at Hogwarts - Chapter 76 rain on june

“You don’t want to be forced to match, right, Lin Changan?”

The delicate-looking girl asked softly, and pushed the “Personal Subject Relationship Contract” to Lin Changan’s eyes.

Lin Changan’s eyes were full of despair, but fortunately, he awakened the simulator system, which could simulate life infinitely.

After each simulation, you can choose talents, realms, combat experience, cultivation insights or some memory fragments.

[You rejected the “Personal vassal relationship contract”, signed an implication with a girl, was killed by a love rival in the dungeon, and you died. 】

[You chose to eat soft rice hard with talent. 】

[At the age of 22, the sickly junior girl confessed to you that she was rejected by you. Since then, she will poison you quickly because of love and hatred. 】

[You chose a talent that is invincible. 】

[At the age of twenty-four, the beast tide struck, and you were drowned in the beast tide. 】

[You have chosen the realm and condensed the power of the stars. 】

[At the age of twenty-four, the beast swarms attacked you. As a general, you were exhausted and drowned by the beast swarm. 】

[You have chosen an inexhaustible talent. 】

[At the age of twenty-four, you went to the front line to resist the beast tide, and your spiritual power is inexhaustible…]

After countless simulations, there are stars twinkling in your eyes, and every move is blessed by heaven and earth.

【The simulation starts! 】

【You are invincible, the universe is respected! 】

- Description from novelbuddy

Eira Kingston, a feared assassin, never imagined that death would lead her to transmigrate into the body of Ephyra Allen, the disgraced first daughter of the once-powerful Allen family. But what shocked her even more was the soft mechanical voice in her mind, addressing her as “master” and informing her that her soul had returned to its original body.Eira dismissed the strange voice, thinking she was having a post-death hallucination. But waking up in a hospital, with memories that weren’t hers flooding back, she was forced to confront the truth.Ephyra’s life had been nothing short of a nightmare. Despite being the legitimate daughter, she was labeled a bastard, shunned by all, and overshadowed by her scheming stepsister, who had stolen the love of her father and her betrothed. To make matters worse, the wealth and status the Allen family enjoyed were all thanks to Ephyra’s late mother, and the only reason she hadn’t been discarded entirely was due to her mother’s inheritance, locked away until she turned eighteen.But Eira wasn’t one to be defeated by circumstances. If she was going to live Ephyra’s life, she would do so on her own terms. She would destroy those who had caused Ephyra pain, claim the inheritance that was rightfully hers, and find out who was behind her own death. Because if there was one thing Eira knew how to do well, it was to survive—and make her enemies pay.However, being a high-schooler with nothing to her name wasn’t enough. As Ephyra, she’s powerless, but as an assassin, she’s lethal. Still, even that wasn't enough until she became the contracted wife of Lyle Aelion—a powerful, enigmatic figure in the business world with a secret illness. And it turns out, the only thing that can relieve him is her scent.

The world that nurtured the civilization which reached the pinnacle of magic was on the verge of destruction.
The last survivor transmigrated to the past, when the magic civilization started growing, as countless mages were still fumbling their ways through the thorny paths of magic knowledge.
He, who came from the end of the magic era, aim to reach the pinnacle of magic.

- Description from Novelupdates

A noisy little family, a cheerful group of classmates, and a boy, born on the first year of the lunar calendar living a never changing life. Then one day he notices a girl in his class shrouded in mystery. Her name is Makina. However, the boy just can’t seem to bring himself to talk to Makina. Then one day, before the first lunar calendar month, another mysterious beauty appears. Her name is Rushia, and as she leans in as if she is going to kiss him, she tells him about a mysterious power hidden inside him called the “Snake Eyes.”