This was originally from the Black Jack (2004), but weren't aired then, only later. There are two episodes in this: The Dog Thief Kamaitachi in the Woodlands

The special episode features the captains of the different squads plus Asta and Yuno participating in a quiz show.

Salaryman Rokurou Okajima spends his days trying to climb his company's corporate ladder, until one day when a business negotiation in Thailand goes awry. During the botched deal, he falls hostage to the Lagoon Company—a band of ruthless pirate mercenaries. Left to the whims of his captors after his managers refuse to pay his ransom, Rokurou does the unthinkable: instead of begging for his life, he joins the very crew who kidnapped him. Now a member of the group, Rokurou must adjust to his new residence in the dissolute hellscape known as Roanapur, a city where corruption and crime run rampant, and even the smallest slipup could cost him his life. If not for one of the many crime syndicates on the island, Rokurou also constantly finds himself at odds with his brash, gunslinging colleague, Revy. As Rokurou struggles to abandon his past—and with more than just the profits from the Lagoon Company's illegal trading on the line—he must quickly find the resolve to make tough decisions in high-stress situations while keeping his humanity intact.

Crime never sleeps in Roanapur, and neither does Roberta—a devoted maid and skilled guerilla soldier in service to the Venezuelan Lovelace family. After the assassination of her superior by the US Secret Service, Roberta returns to the city of debauchery in search of vengeance and his killer's head. Meanwhile, young Fernando Garcia Lovelace, the new heir to his father's estate, tails Roberta to Thailand alongside his bodyguard, Fabiola Iglesias. He enlists the help of the Lagoon Company, with the objective of deterring Roberta's warpath and bringing her back to the family. However, with the continued bloodshed and mounting tensions between Roberta, island crime factions, and the US military, it will take a significant amount of strategy—and weaponry—to stop her relentless quest for revenge.