Lupin the 3rd: Blood Seal of the Eternal Mermaid is the twenty-second Lupin III television special. It originally aired on December 2, 2011.
Synopsis
Lupin's latest heist involves stealing a pair of jewels that hold the secret to an even greater treasure, but unfortunatly there's a lot of obstacles in Lupin's way. The smallest one involves Maki, a 14 year old girl who wants Lupin to teach her to be a thief. But what is her connection to the treasure and the mysterious girl Misa. The secrets behind the treasure reach back even into Lupin's own past.