Matan's Shooter - Chapter 783

The Supernatural era descended, the rules changed, mystery arrived, and the world altered. Countless ruins of civilization emerged, and an abundance of Heavenly Materials and Earthly Treasures lay at everyone’s fingertips. Radical faction, “This is the best of times, entering a new world, excavating relics, mass evolution!” Conservative, “This is the worst of times, with countless monsters outside, once you leave the Safe Zone, extinction awaits humanity!” … Meanwhile, at a remote ruin, Lu Yuan successfully discovered new treasures and sought after the mysterious wealth, desperately trying to contact his fellow Earthlings. “Found a communicator, can it get through?” “Hey, humans—I’m almost becoming a god, and you’re still hiding in the Safe Zone?”

Xia Yan passed through to the world of Bleach and became an eleven-year-old boy. He was rescued by Renji and Rukia in the Seireitei, and he was studying at Shin’ō Academy, and he was a student of the same class.
He is a top student of the Shin’ō Academy, and he is vying for strength by various teams. In the end, he has entered the first team of secret mobile maneuvers.
He will use punishment to kill every person who tries to threaten the martyrdom and protect his loved one.

- Description from Novelupdates

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!

only led to his death.But fate had other plans.Reincarnated as the son of the strongest being in existence, the Demon King. One might expect him to resist, to rebel against the Demon King and kill him once and for all.But why bother?Being the good guy led to nothing but betrayal and death. This time, he'll live for himself. Women, pleasure, power—he will claim it all, as any true demon would.