In this special episode, Kakeru and the team enter a "Pink Night" instead of red. The "Black Knights" are now "Pink Ero-Rangers" and Lisolette is a bondage driver. The team's powers are also warped with an erotic twist. Kakeru can see through clothes, Yuka can change the boys into girls, Misuzu's swords are vibrators, Kukuri can speak, but only says and draws profanities, Yukiko becomes sexually excited when she takes off her glasses, and Takahisa shoots a small spout of water from his finger. This episode is merely a parody and is in no way related to the original storyline.
First episode is based on the 16th volume of the manga. Features Ikki vs. Ringo. Second episode is based on the 23th/24th volume of the manga. Features Kogarasumaru vs. Sleeping Forest inside Inorganic Net.
Roberta, the terrorist-turned-maid that made her appearence in the first season of "Black Lagoon", returns in this five-episode OVA series—and this time, all bets are off!
Roberta's benefactor, the patriarch of the Lovelace clan, is murdered during a political rally. The assassin's trail soon leads back to Roanapur—so now she has returned on a mission of vengeance! However, close behind her is the new patriarch, Garcia, as well as Roberta's apprentice (and maid), Fabiola Iglesias. As the body count of Roberta's bloody rampage mounts, forces from within the corrupt island (which includes the Lagoon Company), as well as overseas converge on what threatens to escalate into all-out war!
Hasegawa Kodaka has transferred schools, and he's having a hard time making friends. It doesn't help that his blond hair tends to make people think he's a delinquent. One day, he runs into his bad-tempered solitary classmate Yozora while she's talking animatedly to her imaginary friend Tomo. Realizing that neither of them have any actual friends, they decide that the best way to alter this situation is to form a club and start recruiting.
That is how "Rinjinbu", The Neighbours' Club, was formed, a club specifically designed for people who don't have very many friends. As other lonely classmates slowly join their little club, they'll try to learn how to build friendships through cooking together, playing games, and other group activities. But will this group of relationship-challenged misfits really be able to get along?
Naota is a normal Japanese 6th grade boy (although a little cynical), but when his older brother leaves for America to play baseball, his brother leaves his homeless 17 year old girlfriend Mamimi behind. Mamimi is sending mixed signals and advances to Naota, and he doesn't know what to do about her. But to make matters worse, Naota's world is totally turned upside down when he is run over by a woman on a Vespa. During their first encounter, she hits him over the head with her bass guitar, which then causes a horn to grow out of his forehead. She calls herself "Haruko" and her presence changes Naota's life to even further insanity.
Two OVA episodes are bundled as DVDs with each of volumes 6 and 7 of the manga.
The first OVA is a prequel story written by the manga's author. Before the beginning of the main story, Rea and Chihiro have already met at a certain place - an outdoor hot-spring bath.
The second OVA takes place after the series (effectively episode 14). The Furuya family finds a mysterious young girl hiding under the household temple.
In this special episode, Kakeru and the team enter a "Pink Night" instead of red. The "Black Knights" are now "Pink Ero-Rangers" and Lisolette is a bondage driver. The team's powers are also warped with an erotic twist. Kakeru can see through clothes, Yuka can change the boys into girls, Misuzu's swords are vibrators, Kukuri can speak, but only says and draws profanities, Yukiko becomes sexually excited when she takes off her glasses, and Takahisa shoots a small spout of water from his finger. This episode is merely a parody and is in no way related to the original storyline.
First episode is based on the 16th volume of the manga. Features Ikki vs. Ringo. Second episode is based on the 23th/24th volume of the manga. Features Kogarasumaru vs. Sleeping Forest inside Inorganic Net. 
Animate Tokuten for purchasing all 6 volumes of TV Anime Series. The contents of the OVA are from the Drama CDs.
Roberta, the terrorist-turned-maid that made her appearence in the first season of "Black Lagoon", returns in this five-episode OVA series—and this time, all bets are off! 
Hasegawa Kodaka has transferred schools, and he's having a hard time making friends. It doesn't help that his blond hair tends to make people think he's a delinquent. One day, he runs into his bad-tempered solitary classmate Yozora while she's talking animatedly to her imaginary friend Tomo. Realizing that neither of them have any actual friends, they decide that the best way to alter this situation is to form a club and start recruiting. 
Unaired 13th episode of Boku wa Tomodachi ga Sukunai.
A DVD containing an all new, original anime episode bundled with the fifth volume of Chako Abeno's Dantalian no Shoka manga adaptation.
Naota is a normal Japanese 6th grade boy (although a little cynical), but when his older brother leaves for America to play baseball, his brother leaves his homeless 17 year old girlfriend Mamimi behind. Mamimi is sending mixed signals and advances to Naota, and he doesn't know what to do about her. But to make matters worse, Naota's world is totally turned upside down when he is run over by a woman on a Vespa. During their first encounter, she hits him over the head with her bass guitar, which then causes a horn to grow out of his forehead. She calls herself "Haruko" and her presence changes Naota's life to even further insanity.
Two OVA episodes are bundled as DVDs with each of volumes 6 and 7 of the manga.
An OVA bundled with the eighth volume of the Seitokai Series Spinoff novel.