Height: 173 cm Weight: 64 kg Sizes: 100 - 62 - 98 Seraphim, "Sera" for short, is a well-endowed vampire ninja (�血�者, Kyūketsu-ninja) who combines her Tsubamegaeshi secret sword technique (秘剣 燕返�, Hiken Tsubamegaeshi?) and ninja reflexes with her vampire powers to fight her enemies. She is able to form a pair of bat wings and a katana out of several leaves. As a vampire, she periodically requires blood to stay alive, and can anesthetize people with a kiss in order to numb the pain from neck bites. She does this with other girls, since kissing a boy would symbolize marriage in her cult's rules. She comes to Ayumu's house to serve Eucliwood, though when rejected, she ends up being Ayumu's servant in hopes she can change her mind. She is rather cold towards Ayumu, constantly calling him a "piece of shit" (クソ虫, kuso mushi?, lit. "dung beetle"), though has a healthy respect for his combat abilities. In later novels, she seems to be developing feelings for Ayumu, slowly becoming more of a tsundere than when they first met. (Source: Wikipedia)
Height: 168 cm Weight:55 kg Sizes: 99 - 60 - 86 A vampire ninja from a different faction from Seraphim's who is also a student in Ayumu's high school. Maelstrom is able to use tonkotsu ramen soup to instantly defeat Megalos, though the explanation behind it is too advanced for even her to understand, and has a machine which sprays said soup over the city whenever a horde of Megalos attack. As a result of accidentally kissing Ayumu when he was pushed by Haruna, they are technically declared married by her faction's customs, and she constantly acts like a wife while at school, where she goes under the alias Yuki Yoshida. Because of how this name is written, she is nicknamed "Tomonori" by Orito. (Source: Wikipedia) In Episode 9, when Ayumu risks his life to save Maelstrom from 'self-destructing', she seems to have developed feelings for him.
Highly decorated and a Knight of the Order of the Garter, the Admiral is Robert Stephenson's main point of contact with the British Government. The Admiral is rather set in his ways, believing that men, not machines, fight wars. He displays a stereotypically British style of composure, calmly taking afternoon tea on the deck of his flagship while a battle rages nearby.
An oddly-colored spider with three eyes upon its abdomen, which appears in the sunset world where Ai and her assistants reside between assignments. It speaks with the voice of a man and is apparently Ai's superior, having been the one to pronounce sentence on her after she killed the people of her village.
He is the pricipal of the school were Ayu, Nina, Maya, Testsushi, Hiroki and Jun goes. It is also revealed that he is befriends with Nina's grandfather and he also knows how to use magic. edited by: kona
Captain, as he's known by his fellows, is a mercenary under contract with the Extra Order Company, a private security firm that was contracted by Kageyama of Asahi Heavy Industries. His job – eliminate the Lagoon Company, as well as their hostage Rock, mainly because of the computer disc Rock was carrying when he was taken. A veteran of the Liberian Civil War of the 1990's, Captain is an experienced soldier, with no qualms about killing anyone he was hired to kill. He's also a thrill-seeker, always looking for a worthy opponent to face-off against – which proved to be his undoing. The first attack against the Lagoon Company was at the Yellow Flag Bar. Captain and his fellows staged a hit from outside, killing most of the patrons. What they didn't count-on was Revy and Dutch, as well as a very irate Bao (because his bar was getting shot-up and threatening to make the Lagoon Company pay for the repairs and restocking), making a counter attack, killing sixteen of the mercenaries and wounding eight. The way the EO mercenaries were defeated impressed Captain, and he eagerly awaited another chance to face them. Later, while acting as the gunner of a modified Soviet Union-era Mil Mi-24 'Hind' helicopter gunship, he chased the Black Lagoon into the mouth of a river that had a dead-end, then waited for them to return so that he could kill them. What he didn't count-on was that Rock had formulated a risky plan to save his captors. In facing-off the gunship, the Black Lagoon used the sunken hulk of an old warship as a ramp and went airborne – with the gunship in front of them. Dutch, piloting the PT boat, then launched two of the torpedoes at it – with the fatal one hitting Captain square in the face before bringing the gunship down! (source: Absolute Anime)
A brilliant, extremely eccentric, and slightly crazy scientist who toils away his days in his lab, creating robots to carry out different tasks. ANN