Takenaka Hanbee no Seizon Senryaku: Sengoku no Yo wo Ayatsuru "Chashitsu" no Naka no Eiyuu-tachi

An unremarkable bachelor office worker in his 30s awakens to find himself reincarnated as Hanbei Takenaka, the legendary strategist of Hideyoshi Toyotomi. Simultaneously, seven other modern Japanese men also find themselves reincarnated as warlords of the Sengoku era, Japan's warring states period. In a mysterious white void, they discover a PC displaying a "Chat-Shitsu" page, allowing them to communicate with each other. Can they work together to survive against seasoned warlords like Nobunaga Oda, Ieyasu Tokugawa, and Kenshin Uesugi?

(Source: Orange Inc.)