"A Diamond Disappearing in the Hong Kong Night Sky" note with the English title of "Pretty Cluckin Insane". Released by Geneon in 2005 on Volume 8: Sweet Betrayals.
Lupin and Jigen, disguised as policemen, board a large ship docked in Hong Kong, claiming to be looking for illegal wares, while the captain mutters that they’re only wasting time. In fact, the duo doesn’t find anything except a hidden room… containing chickens! As the captain explains, the owner of the ship, Ko Chinko, is a fine gourmand and both chickens and their eggs are considered a delicacy in Hong Kong; he then offers a fresh egg to the duo, but they decline and leave, with Lupin explaining to Jigen that he heard that Ko Chinko, the boss of Hong Kong’s underworld, is currently smuggling precious diamonds with an unknown method, and they are after them. Meanwhile, in a fancy restaurant, Ko Chinko himself is enjoying his favorite dish (raw eggs) with Fujiko and his bodyguard, the imposing Daimangan, while explaining to a puzzled Fujiko his love for strong things, tasty things and beautiful things. He also invites her to the special martial arts tournament he’ll host soon on his own private island, while Zenigata eavesdrop the conversation from a nearby table, thinking that Lupin will be involved.
The day of the tournament, Lupin and his partners are driving to Ko Chinko’s island base: Goemon will participate to the tournament while Lupin and Jigen will sneak in the residence and look for the stolen diamonds. At the gate they stumble into Zenigata, who’s trying to force his way in, only to be eventually kicked out by Ko Chinko’s hired thugs. As the warriors prepare themselves for the competition, Ko Chinko appears, and soon proves his cruelty by having one of his own men thrown to the alligators for clapping out of time. The tournament begins as Lupin notices Fujiko beside the boss and the massive Daimangan grows irritated at Goemon’s skills. While Zenigata fails to get on the island by sea, Lupin and Jigen explore the mansion, but find nothing but tasteless furniture and Ko Chinko’s collections of restaurant menus, before stumbling in a hidden room containing… poultry again? Alas, said room also has a metal cage that traps the thieves, who are then taken to Ko Chinko.
The mafia boss asks them if they found anything before ordering them to be thrown to the alligators, but Daimangan begs his boss to let him have fun with them instead, and the two are forced to take on the massive brute unarmed, while Goemon watches, stating that it’s not his turn yet. Soon enough, Lupin overhears a man telling Ko Chinko that the buyers are arrived and the chicken have laid the eggs, causing him to leave the two in the hands of the fire-breathing henchman; while Jigen takes Daimangan’s attention, Lupin sneaks back into the palace, where he manage to find the reunion room where Ko Chinko and the buyers are located, and finds out that Ko Chinko fed the diamonds to the chicken, so that he could recover them in the eggs they laid.
Having found out the secret, Lupin releases some kittens in the room, and use the ensuing chaos to make off with the precious eggs. Meanwhile, Jigen is cornered by Daimangan but rescued by Goemon, who proceed to challenge the man to a sword fight. As Lupin escapes the gun-toting Ko Chinko and his henchmen, he’s pulled in a room by Fujiko, who suggest splitting the treasure in half in exchange for a way out. Thanks to her, Lupin manages to find an escape route using the open window and a rope to leave the mansion; when Ko Chinko and his goons try to follow him Lupin cuts the rope, sending the three gangsters in the alligator pond where Ko Chinko is nearly eaten.
About the same time Goemon is disarmed by Daimangan but still manages to win by judo-throwing his opponent in the pond. As the group tries to escape they discover that Zenigata has returned with reinforcements and there’s no way out, but the master thief has an idea: using Daimangan’s fire breath they build a makeshift hot air balloon and leave the island with their precious basket of eggs… which promptly hatch, revealing cute baby alligators inside! Turns out that, while Lupin was dealing with Ko Chinko, Fujiko swapped the basket of diamond-containing eggs with one of alligator eggs, leaving Lupin empty-handed while she basks in the sun, enjoying her diamonds and her new yolk-based beauty cream. Lupin and his fellows can still feast their eyes on the magnificent sight of Hong Kong by night.
This Episode contains examples of:
- Artistic License – Biology: Ko Chinko's smuggling method wouldn't go so smoothly in real life...
- Blood Sport: Variation, Ko Chinko enjoys strong things and watching martial artists fighting, hence the tournament. Though it's implied that he likes seeing people being manhandled by his servant.
- Breath Weapon: Ko Chinko's servant Daimangan can, somehow, breathe fire from his mouth.
- Chekhov's Gun: The chicken in the cargo ship. Also, the alligators, in a way.
- Chronic Backstabbing Disorder: Fujiko, once again. Anyone's surprised?
- Disproportionate Retribution: One of Ko Chinko's mooks keeps clapping his hands out of time after he's appeared. He has him thrown to the alligators to be eatern alive.
- The Dragon/The Brute: Daimangan is Ko Chinko's bodyguard, is incredibly large, strong and muscular but not very bright, to the point that he doesn't even speak.
- Fat Bastard: Ko Chinko is a mafia boss with a rotten disposition and a Faux Affably Evil façade, and he's quite portly since he loves to eat.
- Fed to the Beast: Ko Chinko has a tendency to feed people he doesn't like to his alligators.
- Just Desserts: Narrowly averted, both Ko Chinko and Daimangan ends up in the gator ponds: the former gets bitten on his fat butt but survives, the latter manages to wrestle several of them into submission, ending up exhausted.
- Let's Get Dangerous!: Averted when Zenigata tries to force his way in by attacking Ko Chinko's goons: he takes out one of them, but is beaten senseless by the other three.
- Man of Wealth and Taste: Ko Chinko paints himself as one, loving tasty things, beautiful things and strong things. Too bad he's a petty thug with a dreadful taste.
- Master Swordsman: Daimangan, despite being The Brute and using a cleaver-like Dadao, manages to fight Goemon to a standstill and even disarm him of Zantetsuken. That's not something you see often!
- Mundane Utility: Daimangan using his fiery breath to fry eggs or to fuel an hot air balloon.
- Never Smile at a Crocodile: Ko Chinko's mansion include ponds with ravenous alligators inside. In the end, Fujiko switches Lupin's basket of chicken eggs (containing the diamonds) with one of gator eggs.
- Obfuscating Stupidity: Ko Chinko may seem like a jolly but stupid thug, but he did came out with a good plan to smuggle diamonds in the first place.
- Taking a Third Option: Unable to outpower Daimangan with a sword, Goemon ends the final fight by judo-throwing him in a pond.
- Trademark Favourite Food: Raw eggs for Ko Chinko, which is often seen slurping down in the episode.
