When the Republic of Aertia disappears overnight. Leaving only an empty sea where a nation once stood, the world is left reeling behind. Embassies overflow with the displaced, families are torn apart, old wounds, ones long buried by history, begin to ache once more. As the New World powers take notice and old empires test their strength, Aertia will face war, suspicion, resentment, and the consequences of its own past. Not every battle will be won. Not every decision will be right. And not every wound will heal. Based on Nihonkoku Shoukan/Summoning Japan.