Navigation:
Ishin no Arashi (維新の嵐, Translation: Storm of Reformation) is the first entry of Koei's Rekoeition series, a set of simulation titles which incorporate role-playing game elements.
Ishin no Arashi (or "Storm of the Restoration") is a strategy game for the NES/Famicom developed and published by KOEI in 1990 and only released in Japan. It is a simplified version of the same game released originally for PC in 1988. If the name KOEI makes you yawn, don't judge so quickly! This game is more similar to Uncharted Waters than Romance of the Three Kingdoms, so if you liked Uncharted Waters, you might like this.
Sequels to this game have also been produced even quite recently. Ishin no Arashi Bakumatsu Shishiden was released for the PC and Playstation in 1998 and 1999 respectively, and Ishin no Arashi Shippuu Ryoumaden was released for the Nintendo DS in 2010. These games maintain features from this original game, and of course many of the characters since they are historically based.
The game takes place during the Meiji Restoration, probably the most significant era in Japanese history (see the "Story" section below for some detail). The country is divided into three political parties. Your goal is to persuade influential figures (such as the daimyo) to agree with your political ideology. If you manage to convert each region of Japan to your ideology, you will have unified the country and beat the game. This requires engaging in conversations with other characters that are done in a similar manner to a turn-based RPG battle. In addition to these conversations, you can actually attack other characters and kill them, or invade their castles with your army, but these tactics are pretty cumbersome compared to the conversation tactic.