What are some evil Japanese last names?

In Japanese culture, certain last names may carry negative connotations or associations due to historical or cultural contexts. For example, names like "Oni" (鬼), meaning "demon," or "Yurei" (幽霊), meaning "ghost," evoke sinister imagery. Additionally, "Kuroi" (黒い), meaning "black," can have ominous implications. However, it's essential to understand that names alone do not define an individual's character, and cultural interpretations can vary widely.