"DAMN IT!"
Researcher Mahan, Instructor Valdin, and every other person in the lab were surprised by Simon's roar because it was completely unexpected.
According to Researcher Mahan's experience and knowledge, Simon should not be in so much pain just from taking an injection of Formula X-V.
But Simon was in pain and in a whole lot of discomfort, and even he did not expect to experience such a thing.
When he was injected with Formula X-I, Formula X-II, Formula X-III, and Formula X-IV, all he felt was that a cold liquid was flowing through his body.
Sometimes, the liquid would feel like a gas, then it would turn back to its liquid state while flowing throughout his body.
But the moment Researcher Mahan injected him with Formula X-V, he felt so much at once.
The first thing he felt was the coldness. It felt like the liquid which entered his bloodstream froze his entire blood and was freezing every single part of his body.
