Crownless Reincarnation: New World? Nah I'd win - Chapter 3: Reason.

Cheng Yan transmigrated only to end up in a medieval Europe like world, becoming Roland, a Royal Prince. But this world doesn’t seem to be the same as his former world, despite some similarities. Witches are real and they actually can use magic?

Follow Roland’s battle for the throne against his siblings. Will he be able to win, even though the king already declared him to be a hopeless case and with the worst starting situation? With his knowledge of modern technologies and the help of the witches, who are known as devils’ servants and are hunted by the the Holy Church, he might have a fighting chance.

Now, let his journey begin.

Aoki’s resolute face was indifferent. “If the sun doesn’t shine on me, please let me be surrounded by darkness!”
From a different perspective, look at the entire Pokemons world.

- Description from Uukanshu

This is the story of Kir, who has to thwart the will of Heaven, Hell, and his parents in order to survive, protect the people he loves, and achieve happiness.He just has to make it through life at a magical academy, avoid dying, and survive to find his birth mother, the lost Daughter of Heaven. Or be forced to take his place at the side of his father, a Duke of Hell bent on destroying the way things are.It's a lot to handle for a quiet, brooding angel boy.Fortunately, he has company. A succubus, a foxkin girl, and a half-angel boy to start. And Kir has his own secret: this isn't his first go at life.

Lin Ziyin, modern day mechanical professor especially hired by the school, had the potential for great achievement in her field. However, due to family reasons, she could only treat her mechanical research and teaching as a secondary job, pouring all her energy into the farm and the food business before. Despite her low-key approach, she was unable to suppress her sister's rage, and a furious car crash sent her straight to ancient times.Indeed, she had excellent character, so why did the heavens send her to the sparsely populated Northern Land. Known as the death zone, those who were banished to this borderland would spend their lives and perish there. However, Lin Ziyin was quite satisfied with her own identity. Even if she had lost the protection of her parents, she still had the protection of her siblings and grandfather. Of course, she also had her younger brother and nephew at home who needed her protection. This abundance of familial love was enough to compensate for the hardships caused by poverty at home.Poverty, she wasn't afraid of, as she had experience in farming. With large swathes of uncultivated land, the Northern Land was practically custom-made for her. The heavy workload didn't matter either, she was proficient in designing all kinds of small tools. Whether it was the emperor's absurdity, not providing aid to the border king, or the shameless Tatars that would rob them frequently, none of these posed a problem for her. She could think of solutions for everything. It wasn't uncommon for the border king to tell everyone how lucky he was to have married such a wonderful queen!