Lux, a former prince of an empire named Arcadia that was overthrown via a rebellion five years earlier, accidentally trespasses in a female dormitory's bathing area, sees the kingdom's new princess Lisesharte naked, incurring her wrath. Lisesharte then challenges Lux to a Drag-Ride duel. Drag-Rides are ancient armored mechanical weapons that have been excavated from ruins all around the world. Lux used to be called the strongest Drag-Knight, but now he's known as the "undefeated weakest" Drag-Knight because he will absolutely not attack in battle. After his duel with Lisesharte, Lux ends up attending the female-only academy that trains royals to be Drag-Knights. (Source: ANN)

Mitsugu Banba is a high school girl who finds meaning in donating blood. She frequently visits a blood bank to donate blood, despite being harshly treated by the nurse. One day, she encounters a beautiful girl who looks like she's from overseas at the blood bank. The pale girl looks like she's about to faint any minute, but then, she starts destroying the blood bank. The girl loses consciousness and Mitsugu takes her home... (Source: Official Website)

Valkyries—legendary female warriors from the land of gods, Asgard—are sent by Odin to protect Earth against the growing threat of demons. To overcome these threats, nine valkyries under the guise of the Saotome sisters will have to level up by performing a variety of romantic acts with their official lover, Einherjar. Meanwhile, the socially anxious Takuma Akutsu learns that Odin has chosen him as the valkyries' lover. Despite his utter horror, however, he agrees to let the sisters stay in his big yet empty house to help them in their war against demons. With nine beautiful women sharing his roof, will Takuma manage to prevail over his fear of society and become someone worthy of saving the world? [Written by MAL Rewrite]

The adorable girls of Ousui Academy's student council love to spend time with their crush, Kouki Narumi. But what happens when he isn't around? For the student council, consisting of otaku president Kaoruko Rokuonji; headstrong Ashe Rufflette Sakuragi; quiet computer programmer Toa Narumi; and Toa's best friend, the impish Mihiro Miyase, it means they will have to keep themselves entertained. Wagamama High Spec offers a glimpse into the girls' lives as they get into amusing—and sometimes risqué—hijinks at their school and around town. [Written by MAL Rewrite]