Queen Malta, a renowned singer from East Doroa, sought to bridge the gap between her homeland and West Doroa through her music. Tragically, her attempt to foster peace ended in her assassination during a performance, escalating tensions between the two nations. As East Doroa braces for conflict, the notorious thief Lupin III and his accomplice Jigen Daisuke decide to steal the prized Little Comet gemstone from an embassy in East Doroa. However, their heist is plagued by unusual police interference, hinting at a larger conspiracy. To unravel the mystery, Jigen delves into the enigmatic assassin's past, only to confront his own mortality when he discovers a chilling message at the cemetery. As the deadly sniper Yael Okuzaki targets Jigen, leaving a trail of death in his wake, Lupin and their cunning associate Fujiko find themselves entangled in a web of treachery and betrayal. With danger lurking in every shadow, the true motives behind the assassin's vendetta against Jigen come to light, revealing a sinister plot that threatens to consume them all.