The Iga clan and the Kouga clan have been sworn enemies for more than four hundred years. Only the Hanzo Hattori truce has kept the two families from all-out war. Now, under the order of Shogun Ieyasu Tokugawa, the truce has finally been dissolved. Ten ninja from each clan must fight to the death in order to determine who will be the next Tokugawa Shogun. The surviving clan will rule for the next thousand years. But not all the clan members are in agreement. Oboro of the Iga clan and Gennosuke of the Kouga clan have fallen deeply in love. Now these star-crossed lovers have been pitted against each other. Can their romance conquer a centuries-old rivalry? Or is their love destined to end in death? (Source: Del Rey)

The battle for succession that continued for three generations of shogun in the Keichou era culminated in a gruesome battle of ninja arts between the Kouga and Iga clans. Amidst a rain of flower petals, a man and woman who had decided to live for love were separated once again, beautiful in their transience. However, it is said that by the hand of Hattori Hanzo's adopted son, Kyouhachirou, these two flower petals, whether temporarily or permanently, were given life again and left two mementos behind. These children, born with a destiny of their own, were called Kouga Hachirou and Iga Hibiki. The former had eyes like his father's, and the latter had eyes like her mother's. It is now the Kan'ei era, and the land is at peace. As ninjas begin to disappear into the shadows after being deemed unnecessary, The Kouga and Iga clans ask a favor of Hachirou and Hibiki in hopes of reinforcing their foundations.

Seventeenth-century Japan: a rebellion in the Aizu territory has been brutally crushed, leaving twenty-one brave warriors dead and most of the nuns of the local convent slaughtered. Now the surviving nuns have sworn to seek revenge. (Source: Kodansha USA)

An adaption of Futarou Yamada's novel Kunoichi Kokihei, this story begins the year before the Battle of Sekihagara, in the pleasure quarters of the capital. Kagerou, a real beauty who is a child of the Ootani family, meets five of the most powerful men of the Uesugi clan while serving at a brothel. But sometimes appearances can be deceiving...

This series is on hiatus.

The story takes place after the failed Shimabara Rebellion, led by Shiro Amakusa as a Christian uprising against the Shogunate. It ended...brutally, and Amakusa himself was executed. However, dark forces are at work, and Amakusa returns from the grave...

The Showa writer, Kyutaro Yamada was a medical student- Yamada, a young man who never went to the battlefield, continued to write about the state and problems of Japan at that time, sometimes sharply and sometimes emotionally, despite the conflict. How was it in his eyes in 1945 when it became a turning point in Japan?

This is the latest story of the famous "Ninpo-cho" series of Yamada Fuutarou. It begins in 1638, during the Shimabara Rebellion, where a powerful swordsman who should have died is instead transformed by an arcane ritual into a demonic creature. As time passes, more swordsman facing death go through this transformation. What could these new, demonic swordsmen be planning?

During the reign of Iemitsu Tokugawa, the third Tokugawa shogun, the one-eyed swordsman Yagyu Jubei died in Yamashiro Prefecture. A year earlier, a group of soldiers led by Hidetada Tokugawa came from an alternate universe, where Ieyasu Tokugawa was a ninja, to eliminate Yagyu Jubei. Yagyu Jubei has to fight to solve the mystery of the ninja Ieyasu Tokugawa.

In the first years of the Meiji era, when Edo and Tokyo still coexisted, Senba Heishirou, a former policeman at the Minami-cho magistrate's office, was leading an uneventful life as the kept lover of a geisha. Until he is consulted for a murder case...

From Del Rey: To resolve a clash over succession, the shogun Ieyasu Tokugawa has devised the ultimate contest. Two rival ninja clans, the Kouga and the Iga, will meet in a battle to the death. The victor will rule Japan for the next thousand years. But in the midst of this bloody war, an unlikely romance blooms between Gennosuke of the Kouga clan and Oboro of the Iga clan. Gennosuke and Oboro are the next leaders of their clans and their fates are inextricably bound with that of their families. In the colossal fight, the star-crossed lovers are faced with a fatal choice between true love and destiny. Can romance conquer a four-hundred-year-old rivalry? Or is their love fated to end in death? The first installment in the long-running Ninja Scrolls novel series.