Young-Joon’s mind was sinking into deep darkness. Rosaline’s sight was diving deep underground, about three hundred fifty meters deep. In this underground world, there were not only minerals, but also oil, natural gas, methane, and other biomass. It was a harsh environment that seemed inhabitable, but the fascinating power of life evolved microorganisms even in this environment; they lived here by eating or producing various biomass. There was nitrate-reducing bacteria from the genus Pseudomonas and fermenters that descended from Flavobacterium. These were amazing organisms that broke down aromatic hydrocarbons and produced energy by utilizing nitric acid, chloric acid, and sulfate ions as electron acceptors. They were now clearly visible to Young-Joon.0

These organisms had a small storage space in their cells called a vesicle. They regulated the pH of this region to preserve nitrate or sulfate.0

“Found it.”0

Young-Joon began to quickly scribble in his notebook. The scientists of Cellijenner, who were listening to Lee Hyung-Min’s presentation, stared at him.0

Scribble…0

There was no sound in the room other than the...0