Owari no Chronicle - Volume 1, Chapter 13: Location of the Heavens

MC (female protagonist) dies in a plane crash and wakes up in the body of a beautiful but corrupt and lascivious prime minister in ancient times, Zhang Qinglian. As circumstances decree, he (she) cannot reveal that the original owner’s soul is gone else calamity might occur. So he (she) decides to walk a righteous path, determined to help the lovely but simple little emperor rule the country. Not backing down after facing torture, not losing courage, destroying rebellions and facing off with scheming princes.

- Description from Novelupdates

"I hope my wife liked the arrangements... for the wedding night."

Gary Smith arrived in a peculiar world of beastmasters, where an ancient taboo was reborn from the depth of time, and an evil god was lurking.In this world, birds and beasts, rivers and mountains, even elements could spawn spiritual power and turn into pet beasts. Among them, the powerful ones became ecological niches by themselves, radiating secret realm ecosystems such as the Yellow Spring, Skeleton Kingdom, Succubus Nest, and Kingdom of the Sky Tree, nurturing countless followers.The beastmasters make contracts with the pet beasts, nurture them, and control the spiritual power.After witnessing the “Taboo Sun” event, Gary Smith obtained the ability to extract materials from everything in the world and compile “Secret Food”.Through the Evolutionary Secret Food, the combination of “The Shattered Dusk World” + “Ancient Dragon’s Dead Egg” results in the Feast of the End. When the pet beast consumes it, it evolves into the Dusk Dragon God. The Dusk Domain erodes the world, turning into the God at the end of time.The Skill Secret Food allows the pet beasts to plunder skills from everything, becoming omniscient and omnipotent. The Sacrificial Secret Food snatches the taboo time, sacrifices the ancient beings, and blasphemes against the gods.His style of beast control also started to become peculiar.There is the Spider Shadow that devours ancient dragons and weaves dreams of all lives with its threads, the Red Master that pollutes the multiverse, and the Devourer of the Realms, who consumes worlds...In response to this, he explained, “My pet beasts are just a bit peculiar. They really are not evil gods!”

Arthur was a weak and cowardly boy who lacked the power to protect anyone—a truth brutally demonstrated when his parents were massacred while defending him during a Gate outbreak. As the sole survivor, Arthur spent weeks believing his life was over. When intense chest pains began, he assumed he'd been infected with corruption by the void creature that killed his parents and was merely waiting for death.What Arthur didn't expect was that these sensations actually signaled his Realm Core forming. In two months' time, he would be forcefully transported to the next realm and awaken new powers, becoming one of the world-renowned “Chosen” who protect humanity from Gate outbreaks. Now Arthur must rise through the heights of power, climbing each of the seven realms in hopes of saving his world... or does he?