The fairies I flirted with in the game became real?! - Chapter 273: The Hard Turtle

The sky was painted gray forever. The light of the sun was restrained. The darkness of the night was deeper than ever. At such a time, he belonged to a class people didn’t even recognize as ’human’. He was at the bottom of the social stratum, a slave. And when his only family was taken away from him... he no longer had a purpose in life. Yet, he clung to life because of his promise. And he set an impossible goal for himself, just so he’d have an excuse to live. When he finally reached a place he never expected to be, in pursuit of a purpose he expected to fail and die miserably trying to fulfill... he awoke to a night that would change his entire life. He was an insignificant fly, a mere speck in the destruction of the Empire. But he... survived. And, despite being a slave, he gained the blessing of a king. Or rather, the curse...

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

Akari Nakamura isn't what anyone expects from an S-Class mage.With her stylish fashion and an attitude bigger than her platform heels, she's used to being underestimated. It comes with the territory. But after scoring the highest marks ever recorded on the Arcane Assessment Test, even Crescent Moon University's stuffiest professors can't deny her raw power.Too bad they're going to try anyway.As Akari navigates a world of old money and older magic, she discovers that the university's prestigious facade hides an ugly truth: they're systematically undermining students who don't fit their “traditional” image of what a mage should be.To win here, she'll have to make some powerful enemies and prove herself every step of the way.Oh well. Just another day in the life of the S-Class Gyaru!---A light-hearted yuri/futanari GL novel!

Our protagonist was a Mexican who died on a flight, when he woke up he found Apollo who reincarnated him as the grandson of Gaius Octavian Turino (Augustus) the first Roman emperor, having a mission in hand to conquer the New World to save the Roman polytheist world and his existence.