Excuse me, what do you mean Yin killed?
Di Tianmu said that punishing Yin means that Yin Mu wins the fire, and we also know that the half-fire game is prosperous, so punishing Yin also means the half-fire game. Therefore, mutual punishment is also fire. Just like Yin Wu's semi-customs, it takes fire to pass (that is, Bing Yin and Si or Ding Si and Yin) to form a punishment for Yin Si.