After the Great Oracle War, central banks crumbled and money on private distributed ledgers became the common currency. With advanced AI hackers becoming more efficient at finding and stealing digital wallets, the Band of Brothers formed the Whalewalker Project to create an unhackable quantum computing interface to hide and protect large sums of digital currency. Headed by the genius renegade digital banker known only as Homura, the Whalewalker Project was left as one of the only stable treasuries in the city, giving the Band of Brothers Army a major edge in the war, where they could send huge transactions to purchase abundant supplies of the most advanced weapons and vehicles.