The outer mine of the Chixiao Sect distributes ten spirit stones a day, yet Lin Yi gives the laborers only nine. Unwilling to accept this, Xu Yuan transfers to the western mine, which promises to pay every stone without deductions. But there, injured workers are left unattended and wages are withheld. Returning to the eastern mine, he still wants to know where the missing stone goes. Only when the Xuanyin ore vein collapses and Lin Yi risks his life to rescue his buried companions does an old ledger finally reveal the truth.