Shini Yasui Kōshaku Reijō to Nana-ri no Kikōshi - Chapter 56 - City of Canals (part three)

On a sunny afternoon, Kyle finally received the long-awaited acceptance letter to Hogwarts, the prestigious thousand-year-old wizarding school.At Hogwarts, Kyle led a fulfilling life. Besides attending classes, he spent his free time cultivating magical vegetables, tending to enchanting flowers, or venturing into the dark, forgotten chambers of the castle to provide emotional support to a small creature abandoned for centuries.Dumbledore: “Kyle is a courageous, kind, and sincere young wizard.”Professor McGonagall: “The Headmaster is absolutely right. Kyle never breaks the school rules.”Snape: “Ah, yes… indeed...”Professor Quirrell had thought the same—until one day, he opened a trapdoor and stumbled into a room full of Chomping Cabbages.

In the middle of a deserted island, a small boy wakes up with two sets of memories: one from his few years of life and the other from a man who lived to adulthood and achieved great things. When he least expected it, a powerful master appeared on the island and took him in as a disciple, revealing a shocking fact: magic exists in that world, and, thanks to it, humanity managed to conquer the galaxy.

A young boy named Chen Zong got lucky and found a mysterious Sword Seal. With the help of it, he rose to be a God in Sword who defeated innumerable top talents in all universes from a remote borderland.

- Description from Novelupdates

His fiancée, whom he had never met, had just broken off their engagement. He's then betrayed by his girlfriend and schemed against by her lover.His mother's legacy awakens him. No longer content with mediocrity, he transforms into a dragon overnight.