MTL - Stormwind God - v2 Chapter 2005 What alliance has Gundam

The Empress who dies in torture, An Rushuang is her name. After she wakes up, she finds herself has time-travelled to when she was twelve years old, but she would turn into Major General’s white horse at night. He is a general who orders about the winds and clouds on the battlefield, and she is a little girl lives in her boudoir seclusively.
She endeavors to change her fate, and he spared no effort to win every battle. They meet each other every day, well, it’s night to be accurate. Is that a dream or not? She pleads to marry the seignior to win peace for her family, only to find he is the one she is going to marry.
“Growing old with you under the same roof is my long-cherished wish”, thought them both.

- Description from Novelupdates

This book is also called “The Unscientific Ninja Master of Sand Ninja Village”.

“Gara, come on!” “When oil is dug, Sand Ninja Village will explode.” Gaara was puzzled. He was outraged. ”

Teacher Mu Feng, shouldn’t hard work mean hard work in cultivation? You always ask me to dig sand and find oil for cultivation. ”

“Scientifically speaking, digging sand is a very good exercise.”

“Just dig hard. If oil is dug, everyone in Sand Ninja Village will have a white cloth on their head. I will be the richest in the world.”

- Description from novelbuddy

There are a total of seven sins, and a revelation is made to a young man named Alex that he is destined to become a demon lord, more especially a demon lord of sin called LUST.

It's not like he can change that and because he always knew something about himself was different—not in a physical sense, well, maybe a little—and not in a mental sense—but rather because he is thrown into a demonic war that compels him to accept his new reality.

He was only aware of a difference in himself. Relating to him and the ladies who are drawn to him... Well, it was more or less like he was a magnet in front of all the girls, and all the girls were drawn to him like a metal.

It has been a year since Li Fuchen lost his “talent”. Now he lives the life of a wastrel, being bullied and beaten by those who were once inferior to him. However, he has still not lost everything as he is engaged to a strong and pretty girl of a powerful family… but that came to an end as the engagement was abruptly anulled. With shame brought to the family and his life engulfed by darkness, a ray of hope pierced through the sky.