Hint

Room 214 has a bioelectric signal highly suspected to be human! In the dark room that only had a little starlight shining in, Jiang Baimian opened her eyes wide, and her drowsiness vanished.

With a cautious attitude, she switched to sensing using her Awakened consciousness. The results were quickly 'fed back' into her mind: There was no human consciousness in Room 214.

This… Jiang Baimian looked at the ceiling in the darkness, and her thoughts boiled over like boiling water.

Coupled with her perception of bioelectric signals and human consciousness, she preliminarily determined that an Awakened was hiding in the supposedly empty Room 214. He had concealed his consciousness but didn't deal with bioelectric signals. Therefore, he could hide from Shang Jianyao but was now exposed.