Harry Potter: I Ruined Hogwarts

The peak killer with unparalleled strength in his previous life traveled to the world of Harry Potter and was inadvertently bound to the most powerful villain system. Is he full of malice towards the world, or is the world full of malice towards him? Please pay attention: Harry Potter: I ruined Hogwarts. I don't know if the system is serious or not, but the protagonist with a novel style is definitely not serious. I am a new writer, and I hope my fellow readers will support me. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.