Ryo Saeba is the top "City Hunter" around and he takes on cases with his partner Kaori. A model named Ai Shindo has been attacked and hires him to be her bodyguard. Shinji Mikuni, the president of an IT company that has hired Ai for its ad campaign, turns out to be an old friend of Kaori, and they become involved. Meanwhile, mercenaries are gathering in Shinjuku... and a major arms dealer arrives in Japan with a new weapon, but with Mikuni in the picture, Ryo and Kaori are growing apart...

(Source: Official Website)

A few months have passed since the VF Circuit, and Aichi is now in High School. However Aichi is in a different high school than most of his friends, a high school where the instructors focus on looking towards the future. One day Aichi admits he thinks Cardfight can be a future people can believe in, but in order to prove it Aichi must use his new deck, a deck in which Royal Paladins and Gold Paladins are combined as one force. Slowly but surely Aichi must gain friends through Cardfighting and help his new team win the newly formed high school cardfighting championships. (Source: ANN)

After Makoto Mizuhara agrees to testify against the boisterous student council president Katsuhiko Jinnai for bribing school clubs in the recent student council elections, Jinnai chases him down in an attempt to silence his self-proclaimed rival. Suddenly, during the chase, time stops for everyone—except Makoto. Perplexed, he wanders around the campus until he notices a light coming from the school's closed-off basement, where an ancient relic had just been uncovered. Makoto is walking toward the artifact surrounded by strings of light, when out of it comes an otherworldly woman who claims she has been waiting for ten thousand years to see him. Weakened by the passage of time, she uses her remaining power to transport a confused Makoto to another world, which she refers to as El-Hazard. However, others who are still at school are also caught in the spell, namely: Jinnai; Masamichi Fujisawa, the alcoholic teacher; and Nanami Jinnai, the headstrong sister of president Jinnai. The fantastical and magnificent world of El-Hazard awaits these four individuals where they will become entangled in the story of its inhabitants and embark on an adventure filled with laughter, danger, and even romance. [Written by MAL Rewrite]

As Jun Sakurada fights and lives alongside the Rozen Maidens, special lifelike dolls made to battle each other, he enjoys a rare break in which he is told a story during the events of Rozen Maiden: Träumend. When Jun buys a brooch as a present for Shinku, the fifth doll, she refuses to accept it at any cost. Souseiseki, the fourth doll, then recounts the story of how Shinku and the first doll, Suigintou, first met. This tale tells of the cruel and heartbreaking circumstances surrounding Suigintou's birth, and how the many misunderstandings between her and Shinku shaped their longstanding rivalry fueled by Suigintou's unfettered hate towards Shinku. The stage is set in Rozen Maiden: Ouvertüre in 19th century London as the story delves into the past of these one-time friends and the secrets that they hold. [Written by MAL Rewrite]