Yuko Iida

The stage is set during the 19th century London, in its capital where a wall divides the east and west of the Kingdom of Albion. Five high school girls, who enrolled in the prestigious Queens May Fair School, are involved in spy activities that involve disguise, infiltration, car chase, and more. These girls take advantage of their special abilities and fly around the shadow world.

One day, Zhang Chulan is attacked by zombies in a graveyard. In the midst of that situation, he saves the life of a girl, throwing the kitchen knife in his hand in order to kill the enemies. The girl tells Chulan, who is relieved, to face his hardships head on and leaves. However, Chulan later sees that girl again at his university. From that moment, Zhang Chulan's destiny begins to move.

At first glance, Galko, Otako, and Ojou are three high school girls who seem like they wouldn't have anything to do with each other. Galko is a social butterfly with a reputation for being a party animal, even though she is actually innocent and good-hearted despite her appearance. Otako is a plain-looking girl with a sarcastic personality and a rabid love of manga. And Ojou is a wealthy young lady with excellent social graces, though she can be a bit absent-minded at times. Despite their differences, the three are best friends, and together they love to talk about various myths and ask candid questions about the female body. Oshiete! Galko-chan is a lighthearted and humorous look at three very different girls and their frank conversations about themselves and everyday life. No topic is too safe or too sensitive for them to joke about-even though every so often, Galko seems to get a bit embarrassed by their discussions!

Takamiya Honoka is a regular student whose only problem seems to be that he sits next to Kagari Ayaka, the school's #1 beauty. They have never spoken to each other before and any small interaction between them immediately results in her fanclub beating him. Yet when a falling part of the school's building is about to send him to the afterlife, it's Kagari that comes to his rescue. Only... she's dressed as a witch, carrying him in her arms and floating on a broom?! Kagari tells him it is her mission to protect him and that now she can finally protect him openly rather than undercover.

The Fourth Primogenitor-That's the world's strongest vampire that should only exist in legends. Accompanied by twelve Kenjuu and spreading calamity, this phantom vampire appeared in Japan. For the observation and obliteration of this Fourth Primogenitor, the government and Lion King decided to dispatch an attack mage known as a Sword Shaman. However, for some reason, the one chosen for the observation was a apprentice Sword Shaman girl, Himegari Yukina. Wielding the strongest anti-primogenitor spirit spear, Yukina arrived at Demon District, Itogami City. What is the true identity of the Fourth Primogenitor, Akatsuki Kojou, she encountered over there!?