Here are my top picks for anime like Valkyrie Drive: Mermaid. Keep in mind the list is in no particular order. Enjoy the recommendations.
When Mafuyu Oribe and her adopted sister Tomo rescue a strange wounded man, they have no idea what they’re getting involved with or what the consequences will be. Alexander Nikolaevith Hell is an Iron Qwaser, one of many opposing factions of super-warriors who can each draw upon the power of an element and wield it as an almost unstoppable array of weapons. And unfortunately for Mafuyu, Alexander’s faction is there to gather the mystical relics known collectively as the High Circuit, which puts her friends, family and school at ground zero in a battle for the fate of all mankind! But there’s an even more disturbing twist, as Qwasers require a special liquid diet to manifest their powers, one provided by the women who serve as a Qwaser’s partner. And THAT means that the nursing Mafuyu’s already given Alexander isn’t the only kind of nursing he needs! (Source: Sentai Filmworks)
Just after Utena’s parents died she was consoled by a prince who gave her a ring with a rose crest on it. Utena was so impressed by the Prince that she vowed to become one herself one day. A few years later Utena is attending Ohtori Academy where she gives all the teachers headaches because she dresses in a boys uniform so she can be like the prince she met long ago. After Utena’s friend is insulted by a member of the Student Council, Utena fights in a duel for her friends honor. Utena’s rose crest allows her to enter the dueling arena where Utena wins the duel and becomes engaged to the Rose Bride. Unknowingly, Utena is pulled into a series of duels with other members of the Student Council for the possession of the Rose Bride. As she becomes fond of Anthy, the Rose Bride, she must fight to keep her friend safe and to discover the horrifying secret behind Ohtori Academy.
Asuka and her 4 friends attend the secret Hanzo Academy, which trains young women in the martial art of Ninjutsu. However, the girls find their own skills are inadequate when faced with another group of girls from their rival, Hibi Girls Academy, which trains its Ninjas with the opposite moral philosophy.
Set in a slightly futuristic world where Earth has been invaded and is at war with aliens from another dimension called the Nova, the story follows the adventures of a Japanese boy named Kazuya Aoi who enrolls for training at a special school for genetically modified girls called Pandoras who battle the aliens, and their male partners, called Limiters, who use a special power called “freezing” to limit their opponent’s mobility. The protagonist makes the acquaintance of an unusual older girl named Bridgette L. Satellizer who appears to be the most powerful Pandora in her class, but has not yet chosen a male partner to be her Limiter, and in spite of the warnings of all his friends, he decides to be her Limiter.
Humanity has advanced to great heights since it obtained the information technology known as “Mana.” With that nearly magical power, problems like war, food shortages, and pollution have been eliminated. This age of peace and freedom, the Empress Angelese of the Misurugi Empire is a privileged girl with no disabilities. She learns, however, that she is a “Norma,” a kind of human who cannot use Mana and are outcasts of society. Having lost everything, she is sent to an isolated island. There she meets other Normas who ride in humanoid weapons called Para-mails, protecting the world from dragons invaders from another dimension.
Basara Tōjō met his two cute little sisters, Mio Naruse and Maria Naruse. The two sisters revealed themselves as a member of the demon clan and Basara as a member of hero clan, demon clan’s enemy, and is not related by family. Mio is the future Demon Lord and since Mio’s power is not fully awakened, Basara will protect her from the demons who are after the power she inherited from her deceased father, Demon Lord Wilbert.
It is currently the Taiheimeji era, during the rule of the Tokugawa shogunate. In this era, breasts mean everything. If you have breasts, you are guaranteed wealth and popularity, but if you lack them, you are rarely considered human. Inside the shogunate, there is a group of warriors that support the government—the Manyū Clan, which helps raise the future big breasts. Written on a secret scroll possessed by the clan, there are said to be various techniques on how to grow big and beautiful breasts. Chifusa is the heir of the clan. However, she takes the secret scroll and runs away with it, hoping to fight against the cruel world that the Manyū Clan has created…
In four years’ time the competition that will decide who the next Queen shall be will start. The strongest warrior will continue to rule the country according to tradition and expand it. The contestants need only be older than 12 years. They need not be human, intelligent or even of that country. The rules for the tournament are simple: murder is allowed. Any weapon can be chosen. The winner is decided when one of the participants flees or can’t move anymore. The event is broadcast by the court’s magic teacher through a crystal sphere to the whole population to see and enjoy.
References: Wiki, MyAnimeList, ANN