I can tell you about an anime/manga character that is often cited as displaying sociopathic traits.
One such character is Light Yagami from the anime/manga "Death Note." Light Yagami is a highly intelligent high school student who stumbles upon a supernatural notebook called the "Death Note." The notebook grants him the ability to kill anyone whose name and face he knows. Driven by a strong belief in justice, Light takes on the persona of "Kira" and starts using the Death Note to eliminate criminals, aiming to create a world without evil.
As the series progresses, Light's actions become increasingly manipulative and morally questionable. He starts seeing himself as a god-like figure, believing that he has the right to judge and execute those he deems unworthy of life. He shows a lack of empathy and remorse for the lives he takes and becomes increasingly detached from the consequences of his actions.
Light Yagami is often described as displaying sociopathic traits due to his ability to manipulate and deceive others without remorse, his grandiose sense of self-importance, and his willingness to go to extreme lengths to achieve his goals, even if it means sacrificing innocent lives. He is a complex and morally ambiguous character, making "Death Note" a compelling and thought-provoking anime/manga for many viewers and readers.