Washitzu Naosata, the ruler of the powerful state, Unabara, is looking for his successor. He calls upon all his 31 sons, and tells them to search for whoever they believe to be the strongest martial artist of all. Each of their chosen martial artists then are to fight against each other until only one is left standing. Whoever is the winner, whoever has the strongest martial artist in the nation by his side will become his successor...
Out in the midst of the mountain is the doujo of the "Daigame Ryuu" (Giant Tortoise Style). There lives Kurogane Gama, the son of the legendary swordsman, Kurogane Jinsuke, who is believed to be able to kill 1000 martial artists in Unabara. There, one of the sons of Washitzu Naosata, Washitzu Naoshi, comes in search of the legendary swordsman, only to find that he had gone missing several years ago. After seeing the battle style of Gama, he instead chooses to ask Gama to come with him. Wanting to become stronger, Gama agrees to his offer, and that marks the beginning of Gama's battle to become the strongest of all...
Not very interesting, you say?
And if they are ghost sweepers, professional exorcists exterminating evil spirits and demons?
Huh, not inventive enough?
Then what if the man is a total pervert, beyond hope of any salvation, and the woman is a total hottie?
And there are more babes to come!
What? Sounds like a standard harem manga?
Ok, then let's suppose that the woman is as avaricious as the man is perverse
And she knows how to use her charms to force the man into suicide missions for a starvation wage.
Still missing something?
Then how about a dark, hidden scheme that has been running for ages, which of course can't ignore the woman, who is one of the most powerfull ghost sweepers alive?
Hatsushiba Akira, an awkward senior highschool boy, has a strong crush on classmate Sakuraba Yurika. But when he gets close to her he always says or does something stupid.
At the suggestion of his best friend, Kikuchi, Akira enters the GachaGacha machine to play a game, but the machine fritzes out and malfunctions. That night he sneezes while going to bed, and when he wakes up he looks like the female avatar he saw in the GachaX2. He soon learns that sneezing will change him back and forth from his normal self to a female form. As a girl, Akira-chan is able to get close to Sakuraba and become her friend.
But something is different about Kurara-she's acting very oddly. Sometimes she seems wholesome, pure, and innocent, and at other times she is extremely forward and unabashed. Kouhei soon learns that Kurara has multiple personalities-and decides to help her keep her secret from their classmates. But Kouhei finds himself struggling between helping Kurara as a friend and trying to win her heart . . . which is a challenge, since she has many!
Volumes 1-5 are the first story arc. Starting from volume 6, a whole new set of characters take the story off in another direction. The second arc is known as Gacha Gacha "Secret" arc.
