Heaven's Rebellion

Roman Eldred, the heir to a renowned noble family, was set to marry his beloved fiancée when everything changed in an instant. On the eve of his wedding, he was mysteriously transmigrated to another world, only to find himself cast adrift as an orphan in a realm filled with magic and cultivation. Now living as Leonard, he vows to master this foreign power and find a way back to the life he lost. Driven by the desire to reclaim his stolen fate and reunite with his beloved, he is willing to do anything—no matter the cost.

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I will try to upload consistently, also please tell me if I make mistakes or if I could improve in an area as I am always looking to improve my skills.
Disclaimer:
There wont be any harem as the protagonist is very loyal to his fiancée in his past world.
This new world he is in will be a mix of cultivation and magic, you will understand what I mean when you read the novel.