Chiroptera EA is a professional automated trading system engineered specifically for multi-currency portfolio diversification during low-volatility night sessions. The algorithm covers up to 21 currency pairs simultaneously, identifying predictable mean-reversion anomalies during the quietest trading hours. To guarantee strict capital protection and maintain full retail and prop firm rule compliance, the robot operates on an absolute single-trade execution model. It completely rejects hazardous recovery methods such as grid positioning, cost-averaging, or Martingale lot multiplication, ensuring that every position has its own tactically managed stop-loss and take-profit levels. A unique technical feature of Chiroptera EA is its heavy reliance on optimized limit orders, which helps eliminate slippage and execution delays without requiring an ultra-low latency VPS. It also incorporates real-time multi-feed monitoring to evaluate volume shocks, spread widening, and unexpected price abnormalities caused by unannounced global events. With a built-in economic news filter, automated holiday protection, and an exponentially weighted adaptive learning module that calibrates lot allocations per broker price feed, this MetaTrader 5 expert advisor is designed to deliver stable, risk-aware automation directly to an ECN or Raw Spread account environment.