Citadel for All: The Only Unit Angel at the Start of the Game - Chapter 554

The white lotus, a mysterious artifact rumored to contain the very secrets of the soul, granted its wielder otherworldly power. Countless powerful Magi from all around the universe waged an epic battle over it. When the dust settled from their fierce clash, the artifact disappeared, awaiting to be inherited by one with great destiny.

Adam dreamed of breaking free from the grip of poverty, yearning for a life of riches and comfort. Yet, in a world ruled by arcane spellcasters, achieving such a dream meant becoming one himself. However, learning magic was an expensive aspiration. Not only did it require talent, but also vast resources.

But one day everything changed when he stumbled upon a seemingly ordinary white lotus…

Chen Sha came to a world of immortal martial arts and was ordered to take charge of the world’s first sect.

Before his death, the previous chief told him:

“If you don’t become the best in the world for one day, you are not allowed to go down the mountain for one day.”

So he closed himself in painstakingly, crossed the heaven gate in his body, and faced off against the ancient and modern powerhouses…

…

Many years later, Chen Sha recalled the day he went down the mountain,

From the moment he descended the mountain, he was number one in the world.

In the next ten epochs, any gods and demons have returned, immortals and Buddhas have lived in the world, ancient powers and ancient gods have appeared one after another.

No matter how the times change, he has always been No. 1 in the world and has never changed.

- Description from novelbuddy

He possessed the Xuan Gate Medical Arts and had fortuitously obtained a heaven-defying Spiritual Treasure!

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?