Time passed, nearly two hundred years have gone by.
Green's three hundred-year pause period as a Second-Level Demon-Hunting Wizard was about to end, and the fourth phase of the Face of Truth's breath gas perception was also nearing its conclusion.
Over the two hundred years, besides filling in the gaps left by "Mixed Poison Body Refining" with nearly a century of continuous study post-academy war, Green devoted himself to the research and development of the fourth phase of the Face of Truth.
After thoroughly studying the Black and White Flower Mosquito's method of sensing biological breath with its antenna, Green incorporated a series of intricately designed tiny antennae into the heteromorphic marrow paper that spread over the Face of Truth.
These antennae were so minute that they could only be seen clearly under a Microscope.
