In This Life I Became a Coach - Chapter 23: Between Matches

What if you were transported to a fantasy world with no special abilities, no OP weapons and no status screen to boost your stats? Never mind finding the dragon’s treasure or defeating the Demon Lord, you only need to worry about one thing—how to stay alive.A group of young Brits wake up in a strange, fantastical land with creatures from myth and legend. They are given archaic weapons they don't know how to use and told to do their best.Convinced it has to be some kind of virtual reality RPG, all the people summoned form parties and set off on their adventures, leaving behind the people nobody wants in their group.Story of my life, thinks Colin.

He is a young man without a spirit root. It is believed that this denies him the chance at cultivation. However, a mysterious lady imparts a Supreme Demon Classic to him and from then on, he starts his path of cultivation.
He undergoes a total transformation to emerge as the most fearsome and powerful fiendish demon in his era, that even immortals and fiends are fearful of him, and saints are at his beck and call.
Mastering the Supreme Demon Classic is the turning point in his life. He is able to unleash his immense and divine power from within, illuminating the entire universe!

- Description from Novelupdates

Her sister steal her lover

She thought it was a dream

after rolling and waking

Nightmare Reality

Her loved ones, her love, her life

They were all trapped in that big fire

burned to ashes

In order to avoid marrying an old man from the neighboring county, she must run away. The first time she escaped, the general entered the city, and she rolled and fell in front of him, no, she kneeled in front of him (really not on purpose). The second time she escaped, the general came to visit her house, and the general caught her (he must have done it on purpose). The third time, she was bruised and battered, almost desperate, and he came galloping and took her into his arms. (He was very well-intentioned.) The general said, ” Although I do not want to hold a favor to you, it is true that you owe me a favor.” So? 

 An Ruochen is unwilling to submit to fate and meets General Long three times when she runs away from home. She expects to get help from a powerful man, but she is involved in a secret conspiracy instead. Vicious family, a missing younger sister, a mysterious spy, and power struggles. An Ruochen becomes the key to solving the mysteries and becomes the core of General Long’s heart. 

One sentence synopsis: The right person at the right time changes everything.

- Description from Novelupdates