Ooka Echizen

After awakening in the Edo era, a neurosurgeon uses his medical knowledge to help those around him while searching for a way back to the present day.

Saburo is a high school student good in sports, but not very good with his studies. One day, Saburo travels back in time and arrives in the Sengoku period of 1549. There, Saburo meets Nobunaga Oda who looks and sounds just like Saburo. Nobunaga Oda is the son of a warlord and magistrate of the lower Owari Province. Nobunaga Oda though is physically weak and he asks Saburo to take his place. Then, Saburo as Nobunaga Oda attempts to unify the country of Japan.

The year is 1931. Prince Tokugawa Yoshinobu holds absolute control over Japan. Remnants of the Meiji era’s culture can be seen around the city, but scientific technology and Japanese esoteric cosmology Onmyodo are also developing. Yet lurking behind the glitz is Kuchinawa, a dissident group planning the assassination of the prince. Tasked to extinguish these dissidents is Nue, the government’s secret executioner group. Sawa Yukimura, who works for this organization, suffered at the hands of the Kuchinawa boss. Her entire family was murdered and she dedicated her life to avenging their death.

At the beginning of the Edo Era, when people enjoyed a time of peace, Lord Tokugawa Tadanaga holds a fighting tournament. In the past, matches were fought with wooden swords. This time, real swords will be used. One-armed Fujiki Gennosuke and blind Irako Seigen will fight each other in this match. Both are disciples of Iwamoto Kogan, who is known as Japan's greatest swordsman. Each of them are determined to prove himself the successor of Iwamoto's school. However, there can only be one champion. So begins a story of intertwining fates, conflict, and strange destinies.

The historical novel series depicts Heizou Hasegawa, who metes justice on wrongdoers and supervises the crackdown on arsonists and robbers in Japan's Edo period (1603-1868).

In an alternate history where the male population is nearly decimated, eligible men serve as concubines to the woman shogun inside the walls of the Ooku.

In the early Meiji era, Shujiro, once known as an undefeated samurai, decides to participate in a deadly survival game to save his family and villagers.

Ten years have passed since the end of Bakumatsu, an era of war that saw the uprising of citizens against the Tokugawa shogunate. The revolutionaries wanted to create a time of peace, and a thriving country free from oppression. The new age of Meiji has come, but peace has not yet been achieved. Swords are banned but people are still murdered in the streets. Orphans of war veterans are left with nowhere to go, while the government seems content to just line their pockets with money.

In this world, creatures like vampires and werewolves still walk about, but Aya Rindo can’t say the same for herself. This beautiful disembodied head, carried by her maid Shizuku Hasei, is a detective in search of her stolen body. One evening, they meet half-human Oni Slayer Tsugaru Shunichi, who offers a lending hand. Now, the trio is traveling through Europe, solving mysteries along the way.

During the Sengoku period, there are many factions constantly at war. One of these is led by a one-eyed man named Date Masamune and another by the imposing Takeda Shingen. The latter has a fiercely loyal subordinate named Sanada Yukimura who goes head to head against Date Masamune multiple times, but the battles between them tend to get interrupted. One such battle occurs when both men try to go after another leader named Imagawa, and they’re forced to break off their heated duel when Imagawa attempts to flee the scene with his body doubles. Yukimura and Masamune go after separate Imagawas, but all of the doubles are killed by a third party, and when their paths cross again, they are in front of the menacing Oda Nobunaga and his army. It was Nobunaga’s subordinates that killed those body doubles, and Nobunaga himself proceeds to kill the real Imagawa with a shotgun blast to the head.