Surprise Marriage to a Billionaire - Chapter 5: Unsolved Mystery

I originally thought this was a world like an ordinary urban novel…Drawing comics by myself, traveling is pretty good.
But tell me, what happened to this magician called “Emiya Kiritsugu” who jumped on my face?
Who changed the settings?
Currently involved in the content of “F/Z”, “F/SN”, “Fantasy Carnival”, “The Emiya’s Meal”, “The Holy Grail of the Imperial Capital”, “FLA”, “Elmello II Event Book”, “FGO”, “FE”, etc.
Others related to “JOJO’s Bizarre Adventure”, “Rebellious Lelouch”, “Persona 5”, “Attack on Giant”, “Death”
“FGO”, “FE Series”, “FA”, “FSF”, “Cangyin”, “Magical Girl Illya” will be involved next…

- Description from novelbuddy

In the spring of year 6823 of the New Calendar, Lu Xuan, an unregistered resident of the Federation, hid outside a high school classroom and secretly learned a Cultivation Skill, embarking on the path of Cultivation.On the same day, he returned home and had a dream, just as he always did. In the dream, he was in the Guardian Storage Room during the Spring and Autumn Period in Chinese history（770-481 BCE）, and the current Keeper of the Records was named Li Er, also known as Laozi.Later, Lu Xuan dreamed that he became the succeeding Keeper of the Records, became Confucius's second teacher, became the senior brother of Zhang Daoling, the Ancestral Celestial Master, and became the honorary father of the First Emperor...Even later, someone unearthed a roll of bamboo slips from the ground, on which an event was recorded.[The eighteenth Keeper of the Records, Lu Xuan, his Sword Qi like a waterfall, assassinated Duke Huan of Qi in his bedchamber]

The once greatest Saint underneath the heavens has been reborn after one hundred years. He cultivates with mighty skills, and he fights to once again reach the top of the world!

———【Holy Sword】

———【skill】

———【blessing】

As a brave summoned to another world, Shien is basically invincible.

The goddess told him: “You are the one who is most likely to defeat the devil.”

The princess told him: “I have never seen a foul man like you.”

Even his teammates said: “How about you go to build a country?”

Unfortunately, Shien is so determined to walk his own path.

“I want to be an adventurer, fight monsters without risk and upgrade, and then sneak to defeat the Demon King after i have achieved the max level, and hide my merit and fame.”

However, the Demon King does not necessarily have to be defeated, in fact, it can also be…