Tenka

Tenka Tenka (天下) or literally under heaven. Is the annexation of Kurahashi Shogunate into Empire of Japan on 27 April 1938.

With the recent conflict between Nakama and Japan, the declining authority of Kurahashi Shogunate under Shogun Kurahashi Kiyomasa lead into the surrender of the shogunate government with the aggression of imperial Japanese forces earlier in 25 April 1938. After the fall of Kurahashi Shogunate, Emperor Kuroi of Nakama signed a treaty with the Imperial Japan which allow the annexation of Nakama area while the imperial house of Nakama alongside with the remaining shogunate power under Kurahashi Masamune to stay in Serika (Nanohana) and ensure their safety as one of the treaty point.