Shinwa Densetsu no Eiyuu no Isekaitan - Volume 5, Chapter 4 – Awakening of The Flame Emperor x Soaring of The Flame Princess, Part 6

A teenager named Evan Mason was reincarnated into the magical world of Harry Potter and goes to school at Hogwarts!
With only his knowledge of the future and great talent for magic, he takes the path towards the top of the magic world, only to realize that ever step he took, changed everything!

- Description from Novelupdates

“Dane?” “Yeah, the bastard whose head I smashed with a fire extinguisher.” Grayson Miller, whose life goal is to meet his destined partner just like his Papa and Daddy who gave birth to him. However, even after dating countless people, he hasn’t found the right one. Desperate, he even sought out a renowned shaman, who told him that his destined partner was someone connected to ‘fire’ and has ‘big breasts’. Doubtful, but still pondering how to make the connection, he attends a pheromone party where a sudden fire breaks out. While toying with the omegas and spreading his pheromones left and right, he suddenly lost consciousness after having his pheromones controlled by a certain Extreme Omega. After waking up, Grayson realize that his destined partner might be working at the fire station, and with his father’s help, he gets a job there through connections. However, from the very first day, he gets into a physical fight with the firefighters who were keeping him in check, and among them, he also gets particularly entangled with that Dane Striker bastard…….

As the only magician and pharmacist on earth, Gu Feng’s life began to ripple…

Earning money is the easiest thing to do.

Got an incurable disease? Get a bottle of bright potion! Guaranteed instant recovery.

Worrying about exam results, worrying about going to school? A bottle of refreshing agent solves the problem, if you are not satisfied, you can return it in full! (Note: Chinese composition scores are not within the scope of the Three Guarantees)

Luxury cars, famous houses… these are not a problem for me.

And that long-legged girl, this is just a simple levitation magic, don’t stare at me with that kind of adoring eyes, okay?

Of course, it’s definitely more than that. Every magician is learned. Astronomy and geography, humanities and social interaction, food appreciation… everything is omnipotent and omnipotent. This article is guaranteed to be cool and exciting!

- Description from novelbuddy

At the beginning, travel to the Holy Land Mary Joa and become a slave of the dragon people.

With the help of the Tianlong people’s “enthusiasm”, Chenos obtained the Devil Fruit that can rebound everything, won the favor of the Empress, learned to be domineering, and also gained the Golden Emperor as his younger brother.

Finally, in order to thank the Tianlong people for their “enthusiasm”, Chenos, who became the five emperors, decided to let them leave the Holy Land Mary Joa and experience the fun of the world!

[No system, no golden fingers, take the road of developing fruits, practicing physical skills and domineering, hoping to bring you a different world of pirates. ]

- Description from novelbuddy