Harry Potter: Malfoys Rising Star

Harry Potter: Malfoys Rising Star,

an mc who was an assassin with a dark past, get a chance in a new unknown world for him, watch him as he grows in Strength, and Discover this world.

Disclaimer : I don't own any part of Harry Potter Universe other than my oc, J.K. Rowling Does.
I also don't own the cover Art, Artwork is by Alex Cherry, Source:
https://www.deviantart.com/axcy/art/There-There-The-Boney-King-of-Nowhere-365341818