It's Only Natural That I, a Cultivator of Evil, Radiate Golden Light

Chen Lin transmigrated into a disciple of an evil cult sect. He originally planned to rely on the Shadow Devouring Evil Art to become the number one evil cultivator in the world, but he discovered that every shadow he devoured inherited the righteous cultivation techniques of its owner. Thus... In the eyes of evil cultivators: "This person is deeply hidden; on the surface, he's an evil cultivator, but in reality, he's a righteous saint!" In the eyes of righteous cultivators: "This young man is untainted by dust, carries boundless merit, and is the future leader of our kind!" Chen Lin: "No, I really just want to be an evil cultivator!" — Description from novelcodex.org