C879 The Leader of the Civilization

Lo Chuan withdrew his attention as the enchanting voices of the sirens softly reached his ears. A question had just surfaced in his mind, "System, why do you collect so many spiritual crystals?"

Indeed, spiritual crystals were imbued with pure spiritual energy. Yet, at its core, spiritual energy was merely one form of energy among many, some far more potent, such as the energies of darkness