背暗投明
      Explanation: Back: back on; vote: defected. Refers to the departure from the darkness toward the light. Stunning departure from the main metaphor, to invest in Mingjun
      Usage: -Linked; as the predicate attribute; with compliment
      Source: Yuan Shang Zhongxian "Single Whip wins lance" Wedge: "Xian Chen Ming main and official _select_ion, back cast out the dark, ancient common sense also."