C631 Mist in the Mine!

"Cough, cough!"

Lin Yun's nerves were relentlessly tormented by the severe pain racking his body. Blood poured from his mouth in great gushes, yet his pace never faltered, pushing the Derivation Nine Stars Step to its utmost limit.

Overwhelmed by a wave of dizziness, Lin Yun fought to stay conscious, refusing to stop