Fei Chien (Flying Money) Systems are unlicensed, cross-border informal value transfer networks that bypass the SWIFT messaging architecture completely by utilizing a closed loop of trust-based brokers. A criminal entity deposits un-vouched, local currency with an underground broker in the country of origin, who logs the financial position on a private, encrypted digital ledger and relays the transaction to a target counterparty broker using secure, ephemeral mobile applications. The receiving broker instantly releases an equivalent sum of hard cash, luxury commodities, or peer-to-peer cryptocurrency to a designated front company using unique, pre-shared alpha-numeric tokens or encrypted keys, allowing capital to move internationally without leaving a paper or digital trail in standard financial clearing systems.