Here are my top picks for anime like Bikini Warriors. Keep in mind the list is in no particular order. Enjoy!
Campione!
Some people suddenly find religion, but for 16-year-old Kusanagi Godou, it’s that REALLY old time religion that’s found him! As the result of defeating the God of War in mortal combat, Godou’s stuck with the unwanted position of Campione!, or God Slayer, whose duty is to fight Heretical Gods whenever they try to muscle in on the local turf. Not only is this likely to make Godou roadkill on the Highway to Heaven, it’s also a job that comes with a lot of other problems.
Like how to deal with the fact that his “enhanced status” is attracting a bevy of overly-worshippy female followers. After all, they’re just there to aid him in his demi-godly duties, right? So why is it that their leader, the demonically manipulative sword-mistress Erica Blandelli, seems to have such a devilish interest in encouraging some VERY unorthodox activities? Get ready for immortal affairs, heavenly harems and lots of dueling deities taking pious in the face as the ultimate smash, bash and thrash of the Titans rocks both Heaven and Earth.
Manyuu Hikenchou
It is currently the Taiheimeji Era. It is a reign ruled by the Tokugawa shogunate. Inside this shogunate, there is a group of warriors that support the government. They are the Manyuu Clan. In this current era, breasts mean everything. If you have breasts, you are guaranteed wealth and popularity. If you lack them, you are rarely considered “human.” Members of the Manyuu Clan help raise the future big breasts. Written on a secret scroll possessed by the clan, there is said to be various techniques on how to grow big and beautiful breasts. Chifusa is to be successor of the clan; however, she takes the secret scroll and runs away with it, hoping to fight against the cruel world that the Manyuu Clan has created…
Freezing
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.
Queen’s Blade: The Exiled Virgin
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.
Valkyrie Drive: Mermaid
The “beautiful girl sexy battle action” anime is set on five artificial islands. Mamori is a “mermaid” transferred to one of those islands. When Mamori is attacked, a newly transferred girl named Mirei saves her. The enemy doesn’t stop, however, and the two are soon cornered. Just when they think all hope is lost, Mirei kisses Mamori, and Mamori turns into a sword. Mirei then wields the sword and launches a counterattack against their enemies.
Senyuu.
Long ago, there lived an evil being who reigned over the world through fear, called Satan Rchimedes. He invaded the human world with his many demon underlings, spreading madness and chaos everywhere. One thousand years ago, this menace was sealed by the hero Creation, and peace returned to the world. Then, one day, a great hole suddenly appeared on the surface of the world, and a vast number of demons appeared. The king discerned that the menace Satan had returned after being sealed away for a thousand years, and decided to send the hero’s descendants to battle him. He found 75 men. As one thousand years had passed, you see, it was difficult to tell who the hero’s descendants were.
So the king declared that he would grant the title of “true hero” and great fortune to the one who defeated Satan, and ordered the new hero, Alba, and his warrior attendant, Ross, on a quest to bring down the evil Satan.
References: ANN, MyAnimeList, Wiki