Barbarian's Adventure in a Fantasy World - Chapter 99: Nano (1)

Reborn into the world of Yugioh, it's natural if my goal is to become the best duelist!

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MC: I am a dragon? Cool!
Also, MC: Wait, most of the dragons died after centuries of being hunted for their expensive materials, and when beings called players descended with their powerful systems and immortality, they hunted down rest of them ... and I am the last one... I am fucked!!!
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Join our MC, a former player on his journey not to become a legendary rank item, in a world of the game that he used to play.
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The handsome Emperor falls in love with a Knightess! Knightess Poliana loses to the Acreian Army and despite her struggles to survive in a male infested military, she is now about to die. But then, the young king of Acreia sees her efforts and tells her: "I have a dream, I wish to conquer the world and become an Emperor, would you like to join me?"

Transmigrating into a world of cultivation, you find yourself at the lowest rung of the sect's hierarchy. Everyone wants to bully you to gain some benefits. Fortunately, there are always a few junior brothers and sisters who are 'generous and understanding', allowing you to improve peacefully and secretly grow stronger. Years later, unbeknownst to anyone, you successfully become a deity within the sect. This day, your master visits you at the sect's request.'The upper echelons of the sect believe you have been diligent and loyal over the years, and though your strength is mediocre, you are an honest person, so they've found a marriage alliance for you.''An alliance marriage?''Not exactly. The other family has a rule: marrying into their family means taking their surname.'Is this... becoming a son-in-law who marries into the wife's family?