Demon Lord Shapeshifting System - Chapter 165 Summon The Devil Himself

An underachiever, a chance accident. He gained the premier Cultivation Technique, and from then on, his fate was completely changed.Cultivating superpowers, protecting the campus beauty! With overwhelming strength, he swept through all formidable enemies and made the world tremble with his military might!This is a tale of world conquest! It is also an unbeaten, fiery legend!

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

“Here you go, this is your wage for the week.”After passing over a small pouch, the woman with her legs crossed behind the desk casually made a 'Check' in a notebook and then, without looking up, waved her hand to dismiss him and said:“Remember to file your taxes... Next!”“Wait a minute!”After pouring out the coins from the pouch and looking at the eight large and one small, totaling nine filthy coins in his palm, Leon couldn't help but widen his eyes in shock, almost wanting to pounce on her and fight to the death right there and then.“Damn it! I just repelled the evil god who was trying to erode the world this Tuesday! You bastard even wants to deduct the salary of the savior?”

In the back of the forest lives Allen, the antisocial wizard. He is feared by the people around him and called the “Demon Lord”.One day, while living out his life as a hermit, he finds a young girl named Charlotte who collapsed. Although innocent, she was accused of evil wrongdoings, had her engagement broken and was forced to flee her country.Upon hearing that, Allen recalled the bitter experience of being betrayed by a party he once believed to be his companions. Hearing the story of the 17 year old’s exploitation, Allen decides, “I’ll let her live in my mansion, and I’ll teach her all sorts of bad things…”