The dragon's harem - Chapter 12 Aella Deianira, And The Dragon Is Hungry.

Due to a problem in his soul, Rean never cared about anything in his life. Even though he died heroically, there wasn’t really a 'will' behind that action.

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

“What? The wild chickens I raised are pure blood phoenixes? ““What? The carp I raised are true dragons?”With a wave of hand, the river was cut off; with a slight stamp of foot, the mountain collapsed.A group of incredibly powerful cultivators knelt in front, worshipping and calling ‘senior’.“What the hell wrong with this world?”Li Fan shouted,” Oh no, that’s impossible!”“How could I possibly be a Supreme Master?!”

Seo Tae Hyuk, jailed after being falsely accused.