Sword of Dawnbreaker - Chapter 2

The male student, Fukai Nagamasa, ignores his studies for college entrance exams in favor of following the path to chuunibyou. As he fainted during night cramming session before the exams, he realized that he was transported to a parallel world as a feudal lord in the Sengoku Era. Not to mention that suddenly, he was marrying the sixth Demon King, Oda Nobunaga’s little sister, the one who was purported to be an unrivaled beauty?

In a world of countless schemes, where you are being manipulated at every moment,often without even knowing it.A world where you can't be sure if what you see is reality… or just another illusion crafted as part of a deeper scheme.This is the story of someone who survives it all kind of schemes both small and vast, some he understands, and others he never even realizes.Even he, who is constantly being schemed against, crafts schemes of his own against others.This is a world ruled by deception and Yuan will persevere it, shape it, and rise through it.------------English is not my native language, so please understand if there are any mistakes

They love gold, and they love silver. Even more so, they love gems that dazzle, like stars across the skies.
Firearms, jewelleries, and precious metals; A collector’s world will not be complete without antiques.
Storage auctions, old goods trade, re-estate sales and gold-digging. But the truth is, if one wants to make money, then the supreme way is through searching for the legendary treasures.
Holding the fort, there’s an ocelot, a wolf, and an Andes condor. At the side, there’s a loyal hound, an irascible ape, and an African honey badger. Who said that you can only rely on humans when treasure hunting?!

- Description from Novelupdates