At last, Han collapsed. He fell down into the -170 degrees' Celsius pool, his body was covered in wounds, which quickly froze in the presence of the extremely cold water.
In fact, under such a temperature, the wounds were not the only things freezing. The cold had shut down every cell inside Han's body.
When Han lost his consciousness, and gave up resisting, there was still one thing struggling inside his body, and that was Han's zero-degree brain region. Under the stimulation of the extremely cold water, his zero-degree brain region was shining with a strange light, blinking on and off, like some emergency signal.
After undergoing the extreme training, Han's zero-degree brain region had adopted a habit: whenever the extreme cold pushed Han towards death, it would release abnormally large amounts of source energy to ensure Han's survival.