Hanmura Ryo

A Troop of Self Defence Force the leader of which was Mr. Yoshiaki Iba, suddenly time-traveled to the period of Warring States, with the large quantities of the modern age weapons. As a matter of course, they were drawn into a vortex of the warring period as fate. Eventually, how could they come back to the present day?

A military test accidentally sends a modern-day army back in time to feudal Japan. When their actions in the past begin to have an effect on the present, another unit is dispatched to retrieve them. But the commander of the lost unit has other plans. He intends to use his advanced technology to conquer Japan and change his country's destiny.

In a joint operation with the US military, the transport ship "Osumi" sailing in the Sea of ​​Japan transcends time and space and drifts ashore off the coast of Tsuruga. An encounter with Sengoku daimyo Yoshitsugu Otani will change the fate of the surviving SDF personnel.

(from ebookjapan): In Meireki 2 (1656), the reign of Shogun Tokugawa Iemitsu came to an end and it was the time of the sickly and young Ietsuna. Yasutsugu Miura was the lord of 30,000 koku of Shimono-Mibu. The story begins at the Kuromatsu mansion under the castle where the Miura family fosters their eldest son. Sohei Kura, a skilled member of the Onimichi Shu, sneaks into the Kuromatsu mansion and searches for clues to the Golden Castle. Then, Saihegawa Hoshinosuke, a human with the same powers as the Onimichi Shu, appears and crosses blades with Sohei. The first volume of "Yoseiden" depicts the charm of the original story full of imagination with unique sensitivity and brushwork. Leiji Matsumoto's manga adaptation of Ryo Hanmura's SF novel Yoseiden.

The monumental masterpiece of that popular SF war story comic is now available as a complete version in comic paperback!!With the outstanding idea of ​​"the Self-Defense Forces undergoing training time slip back to the Sengoku period'' "Sengoku Self-Defense Force'' became a pioneering masterpiece of all fictional war stories.Then, "The Sengoku Self-Defense Forces'' was completed with the support of many enthusiastic fans, a further version of the previous work.We will be publishing a total of 12 Seven Bunko volumes, 4 volumes every other month, as a complete version of the popular SF historical war chronicle comic, with new manuscripts added.A platoon of 30 members of the Japan Self-Defense Forces undergoing an exercise on the border between Niigata and Toyama prefectures travels back in time to the Sengoku period 400 years ago while carrying the latest equipment.Using modern weapons, he challenges Takeda Shingen's 20,000-man army.