Lupin and Jigen came to the Castle of Cagliostro to find the counterfeit of the money, Lupin was on a mission to find Lady Clarisse with a samurai person named Ishikawa, Inspector Heiji is trying to arrest Lupin as Count Cagliostro is making his guards to kill Lupin so he wouldn’t ruin the marriage for him and Lady Clarisse, not knowing one of his workers, Fujiko is on Lupin’s side as a undercover spy

But did they know Lady Clarisse had a sibling when rescuing Lady Clarisse? Maybe not….

Lupin: This must be where she is being held captured!