In the wake of a third world war which left Japan in ruins, an organization known as Vischio seized control of Tokyo and renamed it Toshima. Taking place in its back alleys are battle games known as Igura, overseen by the Vischio, in which contestants battle and bathe in each other's blood to earn the chance to go up against its tournament's king, Il-re. Igura is not the only fighting tournament around; Bl@ster is a similar yet vastly different game since it prohibits murder and the use of weapons. The only way to win is by knocking out the opponent. Akira, a young man isolated from his family, is known to be undefeatable at Bl@ster. However, his life on the top is shattered when he is accused of murder. Unable to prove his own innocence, all hope is seemingly lost... that is until a mysterious woman named Emma appears and offers him a chance. Now, to regain his freedom, Akira must participate in Igura and ultimately defeat Il-re.

Due to a mysterious disease, the genius Iria Akagami has been forced by her family to stay in a mansion on the isolated Wet Crow's Feather Island with only a handful of maids. To keep herself entertained, Iria invites a variety of fellow geniuses to stay as guests in her home, including computer savant Tomo Kunagisa and her unnamed assistant, skilled fortune-teller Maki Himena, famous artist Kanami Ibuki, academic scholar Akane Sonoyama, and renowned cook Yayoi Sashirono. These visits progress as normal until one of the guests is found gruesomely murdered in the night without a single clue as to the identity of the killer or a possible motive. Tensions rise between those on the island as the killer remains at large, and Tomo's assistant takes it upon himself to uncover the culprit's identity before the murderous events progress any further.

Vesper is a secret agency fighting an army of alien invaders by using super-powerful battle androids. Mahoro is Vesper's most powerful battle android and has won many battles, but she has little operating time left and soon will cease to function. However, if she lays down her arms and conserves her remaining power, the time she has left can be prolonged to just over a year. Mahoro is given an opportunity to live the remaining time she has as a normal human. She chooses to live as a maid for Suguru, a phenomenally messy middle school student who lives by himself after his family passed away. (Source: ANN)

Shuurei Kou, the daughter of a noble yet impoverished family, is a clever young lady who dreams of becoming a government official and contributing toward her country. However, her dream is out of her reach as such a position is forbidden to women. While her father works a low wage job as an archivist at the palace, Shuurei has to juggle odd jobs to make ends meet. Then, one day, an unexpected visit changes her life. Shuurei is called to assist Ryuuki Shi, the new emperor who is known for slacking on his duties and preferring the company of men. Tempted by the generous compensation, she readily accepts the chance to become the young emperor's consort for six months. Luckily, she is not alone as Seiran Shi, her trusty friend, joins her as Ryuuki's bodyguard. While tasked with transforming the new emperor into a responsible ruler, court life and politics prove troublesome as Shuurei faces the challenges of her new life. Set in a fictional country, Saiunkoku Monogatari centers on the idea of meaningful leadership, its adversities and the rewards that come alongside a prospering nation. [Written by MAL Rewrite]