Lupin III: Twilight Gemini no Himitsu  

Lupin III Special Part 8, Lupin III: The Legend of Twilight Gemini, Lupin 3: Twilight Gemini no Himitsu, Lupin 3 Special Part 8, Lupin 3: The Legend of Twilight Gemini, Lupin the Third: The Secret of Twilight Gemini, Lupin III: "Twilight☆Gemini no Himitsu"

The owner of a criminal organization passes on his valuable possession, a diamond, to Lupin with the belief that it holds the secret to a significant amount of wealth. However, during an attempt on Lupin's life and his subsequent rescue of an enigmatic young woman, it becomes evident that this treasure is far more complex than initially assumed.