187 Metal digestive system

Trapped in this perilous situation, at the instance he pulled open the door he cried out loud and leapt backwards. He obviously didn't receive any injuries, but he purposefully bit his tongue and sprayed out blood! It appeared as if he was struck backwards by an immense force.

When he landed, he rolled violently and feigned unconsciousness as blood streamed from his lips. If one were to carefully observe him, he would certainly be exposed. But Sheyan determined that the Metals professor, in his current fanatical state, wouldn't be concerned about him and would only care about Fanu's condition! Therefore, he dared to pull off this performance.