Osamu Mukai

When an ancient military strategist is reborn in modern Japan, he uses his tactical skills to help transform his new friend Eiko into a music star.

Due to some unlikely events, Saburo is flung back in time to the Sengoku Era. In the past, he meets a young, but sickly Oda Nobunaga, one of Japan’s greatest war lords. Unable to shake Saburo’s uncanny resemblance to himself, Nobunaga asks Saburo to take his place as war lord. Equip with knowledge from the modern era, will Saburo be able to unite Japan?

An elite gun-for-hire is forced to lay low and not kill anyone for a year, but underworld figures start to threaten his newly calm and quiet life.