''The Secret of Twilight Gemini'' is the eighth of the Anime/LupinIIIYearlySpecials, first aired on NTV on August 2, 1996. It tells the tale of the [[MacGuffin titular diamond]], a treasure hidden for centuries, and unravels the past of Lupin's old mob boss, Dalune.

It begins when Lupin pays a late night visit to Dalune, at the aging kingpin's request, where he is presented [[TwoHalvesMakeAPlot with half of the Twilight]]. However, Dalune tells Lupin that the diamond itself is not the gift he has for him. It's merely [[PlotCoupon a key]] to a much bigger prize: a treasure that has remained hidden for more than three hundred years. When Lupin asks where he can find it, Dalune simply answers, [[CityOfAdventure "Morocco."]]

The legendary thief hops a train, unaware that Inspector Zenigata and an army of Interpol agents are also on board to apprehend him. Plus, a CampGay assassin and his [[{{Mook}} mook squad]] who are also after Lupin and the diamond in his possession. After a near miss by both parties, Lupin ditches the train and leaps into [[TheCaper another caper]]…

''Twilight Gemini'' was licensed by Creator/{{Funimation}} and given a DVD release in 2002 (as well as a rerelease in 2006 as part of the "First Haul" boxset). It was their very first ''Lupin'' releases, with ''Harimao's Treasure'' following a few months afterward. Unusually, Funimation decided to offer this special two ways – its original uncut version, and a [[{{Bowdlerize}} censored version that edits]] most of the copious {{fanservice}} and tones down the dialogue. The "First Haul" box contains the uncensored version, though some early copies had erronously put the censored version in there.

'''Complete spoilers below''' — don't read further if you don't want to know how this caper turns out!
!!The Secret of Twilight Gemini provides examples of:

* ActionGirl: [[MsFanservice Fujiko]], as always, and [[GirlOfTheWeek Lara]].
* BadassGrandpa: The Geltic Tribe's Elder. Check out the LaserGuidedKarma entry below.
* BarbieDollAnatomy: {{Averted}} in the uncensored version, where all women's nipples are present and accounted for.
* BatmanGambit: When Lupin receives [[MacGuffin the Twilight]] from Dalune, he's initially lead to believe that Dalune's after the treasure the gem unlocks. However, in the process of solving the mystery of the Twilight, Lupin learns about Dalune's past, including his relationship with Lorre, and his oath to the Elder to reunite the two halves of the gem. But Dalune's true motive for giving him the Twilight was twofold: [[spoiler: to fulfill his vow to the Elder, and so Lupin could discover what happened to Lorre and lead him to Dalune's granddaughter]].
* BellyDancer: [[spoiler: Lara's grandmother Lorre]] was a dancer at the temple during the time of [[spoiler: Dalune]]'s youth. An extended version of her dance is shown in the special's credits.
* BigBad: Hidden within the Police, the villain manipulates Zenigata, the Igo tribe, and the Secret Society of the Gelts. The villain is eventually revealed as [[spoiler: Police Commisioner Jean Pierre.]]
* BigDamnHeroes: Three of 'em.
** First up is Jigen, who saves Lupin's bacon, during his second run-in with [[EffeminateMisogynisticGuy Sadachiyo]], by nearly running him over (with a jeep!) as he picks up Lupin.
** He comes to Lupin's rescue again during the firefight at the Old Geltic City, by bombarding the villain's forces with mortar shells!
** Goemon pulls an epic one just as Sadichiyo was moments away from killing Lupin. A flute chord is heard, then the camera pans up, revealing Goemon's form silhouetted against the full moon, just before [[DynamicEntry leaping into the fray!]]
** Finally, there's Fujiko who pulls hers off, via a motorcycle slide, and mows down a couple of {{Mook}}s in the process.
* BlushSticker: Goemon invokes this when he finds [[MsFanservice Fujiko]] hanging from the rafters of the villain's hideout in nothing but a thong! He quickly averts his gaze, out of respect, and offers to cut her down.
-->'''Fujiko:''' (annoyed) "Goemon, ''how'' do you intend to cut me down ''without'' looking at me?"
* BoomHeadshot: How [[spoiler: Jean Pierre]] meets his end, courtesy of the Elder.
* ButNowIMustGo: Lupin to Lara at the end.
* CampGay: Sadachiyo. Long black hair, makeup, nail polish, overly effeminate tone of voice, you get the idea. It's even lampshaded on more than one occasion.
-->'''Sadachiyo:''' (smug) "You've come all this way just to die."\\
'''Lupin:''' (nonchalant) "Sorry I'm not in much of a dying mood. And who are you?"\\
'''Sadachiyo:''' "It would be rude of me to kill you without an introduction. I'm [[RedBaron Sadachiyo the Scorpion]], darling."\\
'''Lupin:''' ''*strikes girly pose*'' "I'll bet you have a big showtunes collection, don't you?"
* TheCaper: It's a Lupin movie, what'd you expect? In this case, he's trying to dodge cops and secret organizations while stealing a centuries-old treasure.
* ChekhovsGun: In the beginning of the film, Lupin mentions that he's heard rumors of Dalune still pulling strings in the underground syndicate, despite his condition. Might wanna keep that in mind.... as seen in the BatmanGambit entry.
* ChivalrousPervert: Lupin, who else?
* CityOfAdventure: Morocco is complete with beautiful women, shady characters, and all the thrills, chases, mystery, and intrigue of an [[Franchise/IndianaJones Indy flick.]]
* CoitusEnsues: After Lupin accidentally reveals why he's come to Morocco, to Fujiko, [[SexyDiscretionShot its implied]] that they have sex.
* CoolOldGuy:
** Inspector Zenigata. Seriously, anyone who can keep up with Lupin for as many years, and come as close to slapping the cuffs on him as many times he has, has earned the distinction. Hell, Lupin has even said so himself!
** Special mention goes to Bultokari for working in a [[FantasticRacism hostile work environment]] with the Igo while secretly being [[spoiler:a Gelt]] for so long without being found out!
* CurbStompBattle: The war between the Gelts and the Igo Tribe, who had been supplied with tanks and guns by British merchants. [[RealityEnsues Naturally, guns and military weaponry trump swords and camels]], so it's no surprise the Gelts lost… badly.
* DeadPersonImpersonation: [[spoiler:Jean Pierre]] tries to uncover the secret of the Geltic treasure by posing as [[spoiler:the Elder's son, Galoux.]]
* DeathByIrony: A CampGay assassin dies by being pierced from behind by another man's sword.
* DisproportionateRetribution: Goemon may have his principals and all, but it seems pretty unreasonable to want to kill Sadachiyo, just because he's made a career out of his skills, rather than [[ProfessionalKiller HOW]] he's chosen to use those skills. Not to mention hypocritical when you remember that Goemon was also a ProfessionalKiller before joining Lupin. Perhaps he found his past job shameful? Sadachiyo even calls him out on it.
-->'''Goemon:''' "We used to train together, now you've sold your skills to satisfy your greed. I won't allow it."\\
'''Sadachiyo:''' ''*smiles wryly*'' "You want to kill me [[WhatTheHellHero just for that?]] [[HonorBeforeReason How old fashioned. Not to mention, stupid."]]
* TheDragon: Sadachiyo leads the "ninja" mooks against Lupin, starting on the train in France, and reports directly to the BigBad.
* DynamicEntry: Both Goemon and [[BadassBiker Fujiko]], during their respective BigDamnHeroes moments, are blasting into the scene.
* EffeminateMisogynisticGuy:
** Sadachiyo, because on top of being CampGay, he has neither time, respect, or patience for women. From the moment he learns of Lupin's interest in Lara, he uses her as a means to get to him. Especially during their fifth confrontation, where he holds her at swordpoint both to draw Lupin into a fight and to ensure he wouldn't flee the scene.
--->'''Lupin:''' (angrily) "Let her go! She's got nothing to do with this!"\\
'''Sadachiyo:''' (ominously) "But of course she does. She's the bait."\\
''*presses blade against Lara's throat, drawing blood*''\\
'''Sadachiyo:''' [[YouHaveOutlivedYourUsefulness "And we both know what happens to the bait once the fish is caught."]]
** Sadachiyo was just as cruel, if not moreso, where Fujiko was concerned. He initially dismissed her, after he and his assassins [[InterruptedIntimacy crashed their hotel room.]] However, he wasn't as kind when he caught her snooping around his hideout, having witnessed Zora's murder. Following her capture and subsequent questioning, the BigBad gives Sadachiyo the go ahead to torture her.
--->''*Sadachiyo cracks whip, ripping Fujiko's top and exposing her breast*''\\
'''Fujiko:''' (defiant) "You think ripping my clothes off will get me to talk?!"\\
'''Sadachiyo:''' (ominously) "No, darling. I'm getting it out of the way because I believe ''ripping through that beautiful skin'' will get you to talk."\\
'''Fujiko:''' (incredulous) "You psycho!!"\\
[[spoiler:'''Jean Pierre:''']] "Sadachiyo, do whatever you want with her. Make her tell you EVERYTHING! Just don't kill her!"\\
'''Sadachiyo:''' (wicked grin) "Yes sir."\\
''*tigthens whip menacingly*''\\
'''Sadachiyo:''' [[ATasteOfTheLash "We're going to have SUCH a good time..."]]\\
'''Fujiko:''' (deadpan) [[ThisIsGonnaSuck "I'll bet."]]
* FantasticRacism: The Igo Tribe towards the Gelts, which is a central plot point of the film.
* {{Fanservice}}: The most of any ''Franchise/LupinIII''-related feature. In addition to several topless scenes, there's two {{Sexy Discretion Shot}}s, and three instances of near-full-frontal nudity: twice with Fujiko, the other with Lara.
* {{Gainaxing}}: You'll see Lara's breasts bouncing independently during both of her chase scenes, [[MaleGaze since the camera stays focused on her boobs]]. Also seen near the end, when [[spoiler:Bultokari]] saves her with his pick-up truck.
* GentlemanThief: Lupin as always.
* HotterAndSexier: Compared to most other ''Franchise/LupinIII'' related media (noted in the {{Fanservice}} and SexyDiscretionShot entries).
* ImpersonatingAnOfficer: Done twice by Lupin.
** The first happens, near the beginning, where he disguises himself as one of Zenigata's men in an attempt to slip past the inspector. Zenigata doesn't buy it for even a second.
** The other happens about halfway through the film, when he disguises himself as a police officer to infiltrate Morocco's police HQ to dig up information on Galoux. Which leads into a run-in with Fujiko and a night of SexWithTheEx.
* InterruptedIntimacy: Lupin runs into Fujiko while scoping out the night-life in Morocco. After a bit of small talk, and a copious amount of flirting, they retire upstairs to finish [[DoYouWantToCopulate their "conversation"]] [[LampshadedDoubleEntendre in private]]. The scene shifts to their room, where Lupin is eagerly awaiting Fujiko, in bed. She plays hard to get for a moment longer, before joining him. Right as they're going at it, Sadachiyo and his squad, crash through the window to assassinate Lupin, forcing him to flee the scene in his undies!
* LaResistance: The Geltic Tribe, who have long been oppressed by the Igo Tribe, who have long sought to claim the Geltic treasure for themselves.
* LaserGuidedKarma: Applied [[BoomHeadshot directly to the forehead]], by the Elder, when [[spoiler:Jean Pierre]] tries to pull his [[VillainExitStageLeft villainous exit]].
* MacGuffin: The Twilight Gemini, naturally.
* MementoMacGuffin: Both halves of the Twilight, actually. Lorre kept one half and Dalune kept the other half. Dalune kept it to remind him of Lorre; when Lorre died, her daughter kept her half in memory of her as well. [[spoiler:Lupin figuring this out is what allows him to deduce why Dalune sent him to Morocco in the first place; to find Dalune's granddaughter Lara.]]
* MasterOfDisguise: Lupin, as per usual. He goes through several of them, including impersonating an officer to infiltrate Morocco's police HQ, and passing himself off as one of the townsfolk to milk Zenigata for information.
* TheMole: There's two.
** The villain, who's not only descended of the Igo Tribe, he's also infiltrated Interpol.
** Bultokari works for the police (who are all Igo tribesmen) even though he's [[spoiler:secretly a Gelt]].
* MsFanservice: Fujiko provides two thirds of the T&A in the uncut version, with Lara making up the difference between {{gainaxing}} and an outdoor bathing scene.
* NiceJobBreakingItHero: By the villain Sadachiyo. In their final duel, Sadachiyo cuts Goemon's sword in two, sending the broken half into the air. Just as he closes in for the kill, Goemon [[BarehandedBladeBlock blocks the attack]], right as the broken shard of his sword falls and pierces Sadachiyo in the back, killing him.
* NippleAndDimed: Fujiko and Lara nipples are very visible in every naked breast scene.
* ObfuscatingStupidity: Implied to be how Bultokari has played TheMole for so long.
* OhCrap:
** Fujiko when Sadachiyo crashes her night with Lupin III and is about to use his whip to unfurl the bed sheets.
** Lara when she discovers that Lupin III is watching her naked while in the outdoor bath.
* OutdoorBathPeeping: After being rescued from the desert and finding himself alone [[spoiler:in the Elder's tent]], Lupin steps outside to search for Lara. He soon finds her bathing in the oasis, which is when he finally sees [[spoiler:she has the other half of the Twilight.]]
* PluckyGirl: Lara. She's an active member of [[LaResistance the Geltic Tribe]], who fights against the injustices of the Igo Tribe, in order to restore peace to her people and her homeland.
* PosthumousCharacter: [[spoiler: Galoux]] is revealed to have been killed before the movie even starts. Every time we see him on-screen, he's actually [[DeadPersonImpersonation being impersonated]] by the Igo Tribe's leader.
* RebelliousPrincess: A literal example, since she's the rebel leader of [[LaResistance the Geltic guerrillas]], who are fighting to reclaim their ancestral homeland from the oppression of the Igo Tribe. However, [[spoiler:Lara]] doesn't learn of her royal lineage, until [[TheReveal the night before]] the film's climatic final battle.
* RedBaron: Sadachiyo "The Scorpion".
* RefugeInAudacity: Interpol's most wanted thief and his on-again off-again girlfriend, who happens to be an international jewel thief herself, sneak into a busy police station to steal the same file, and end up having sex in the file room!
* RetiredBadass: We learn from the start that Dalune's an underworld kingpin, but he's even more badass than Lupin thought. While investigating the Geltic treasure, Lupin learns that he used to be a member of the French Foreign Legion, and fought alongside the Gelts during their doomed war with the Igo Tribe. The big surprise to Lupin is [[spoiler:Lara being his granddaughter!]]
* RoyalsWhoActuallyDoSomething: A rebel leader with royal lineage equals… [[spoiler:Lara, although she is unaware of her whole past until near the end.]]
* SchmuckBait: How does Zenigata lure [[ChivalrousPervert Lupin]] into his trap at the start of the film? [[AskAStupidQuestion With a woman, of course.]] Speaking of which…
* SexWithTheEx: [[FriendsWithBenefits Lupin, twice with Fujiko.]] Sorta. See directly below for details.
* SexyDiscretionShot: Two of 'em.
** The first occurs moments before Lupin and Fujiko get started in their hotel room. After she strips down, the scene shifts to the balcony outside, allowing the viewer to hear the remainder of their conversation and the sounds coming from inside once they get around to doing the deed. When Sadachiyo crashes the scene, the motion beneath the covers and Fujiko's moaning makes it blatantly obvious what was going on.
** The second one occurs when Lupin sneaks into a Morrocan police station, [[MasterOfDisguise disguised as an officer]], in order to dig up information on Galoux. Fujiko was carrying out a job of her own and was after the same file. They swap notes on what they know so far, during which he accidentally spills the beans about the treasure he's after. So she returns the favor by giving him [[LampshadedDoubleEntendre her treasure.]] The camera pans to the wall next them, just as they get started.
--->'''Lupin:''' (whispering) "We can't! We're in a police station!"\\
'''Fujiko:''' (seductively) "I doubt anyone'll catch us. Now kiss me."\\
''*smooches, followed by {{sexophone}} as scene fades to black*''\\
'''Lupin:''' ''*sighs happily*'' "Fujiko... Fu-ji-ko-ho..."
* ShootTheHostageTaker: Invoked by [[BadassGrandpa the Elder]], when [[spoiler:Jean Pierre]] attempts to pull his [[VillainExitStageLeft villainous exit]], by taking Lara hostage, along with [[spoiler:her half of [[MacGuffin the Twilight]]]] as leverage, to ensure no one got the Geltic treasure. [[BoomHeadshot It didn't work.]]
* SissyVillain: Sadachiyo. As mentioned previously, this guy is [[CampGay simply fabulous]]. If the long hair and makeup aren't enough to convince you, the sheer number of honeys, darlings, and big boys that permeate his speech pattern ought to do it.
* StarCrossedLovers: [[spoiler:Dalune]] and [[spoiler:Lorre]]. He was a former member of the Foreign Legion, she was a dancer at the royal palace. They met during a time when [[spoiler:there was fierce battle between the Gelts and the Igo Tribe. The day the Gelts were forced to flee their ancestral home was the last time they saw each other.]]
%% ^This may be misuse. It's a romantic story of lovers.
* StrangeBedfellows: Zenigata with Bultokari, who ends up being the only one to offer Zenigata genuine assistance in tracking Lupin. Of course, his motives weren't entirely altruistic. The guy is actually [[spoiler:a Gelt]] after all. Since Lupin (and Lara) were headed for the Ancient Geltic City, it stood to reason that, by helping Zenigata, he was also helping himself.
* TearsOfJoy: Dalune is overcome with such emotion when Lupin [[spoiler:tells him about his granddaughter]] that he sheds tears, and thanks him for it.
* TemptingFate: You'd think that if someone murdered another man's son, that they'd have sense enough to NOT brag about it – much less treat it like a joke – while the victim's father is standing RIGHT THERE with a ''loaded gun'' and ''can hear them''. [[spoiler:[[WhatAnIdiot Way to go, Jean]].]]
* TomboyPrincess: Lara has the look of a desert bandit and, due to having been raised by Geltic guerrillas, she's a crackshot with a rifle and accustomed to fighting on the front lines.
* TwoHalvesMakeAPlot: The plot centers around the search for both halves of the eponymous diamond. Lupin receives the first half from his old mob boss Dalune, who tasks him with finding the other half. [[spoiler:It is eventually revealed to be held by Lara, Dalune's granddaughter.]]
* VillainExitStageLeft: [[spoiler:Jean Pierre]] tries pulling one, after Lupin exposes him and foils his scheme. He even takes Lara and [[spoiler:her half of the Twilight]] as leverage to ensure no one got the Geltic treasure. [[BoomHeadshot The Elder wasn't playing that shit.]]
* WhipItGood: Sadachiyo's method of choice, whether carrying out assassinations or torturing women. At one point, the guy even shreds a boulder Lupin was using for cover, in a matter of seconds!
* WorthlessTreasureTwist: Subverted. In the end, Lupin and Lara, along with Zenigata and the others, gather to unearth the long-hidden Geltic treasure. It turns out to be an empty storeroom with an inscription stating that the heart of a people is a treasure unto itself. Lara is overjoyed, taking this to mean that they must unify the Geltic tribe and restore their homeland. Fujiko isn't as idealistic and vents her frustration by kicking the wall… [[spoiler:which crumbles, revealing a massive cache of diamonds! While the others stare, slackjawed, [[HoldingHands Lara quietly shares the moment with Lupin]].]]
* YouAreWorthHell: At one point, Lara gets [[QuicksandSucks stuck in quicksand]] whilst searching for water in the desert. After Lupin's attempts to save her fail, she pleads with him to keep searching for the Gelts without her. He refuses, and instead chooses to join her. Before they are completely dragged under, Lupin reveals to her that he's also looking for the Geltic treasure, but says he's perfectly happy with sinking into the quicksand because at least he'll be with her.
* YouHaveOutlivedYourUsefulness:
** This becomes the fate of [[spoiler:Zora]] and his friends once [[spoiler:Jean Pierre]] realizes they know nothing about the Geltic treasure. He almost says it verbatim before fatally shooting each of them.
** [[OffscreenVillainy Though it isn't shown]], he also explains that he killed [[spoiler:the Elder's son, Galoux]], after being told about the Geltic treasure. This occurs prior to the start of the film, which allowed him to [[DeadPersonImpersonation impersonate]] [[spoiler:Galoux]] the entire time.