"I see," Noah muttered better understanding the decision of the system thanks to Ersha's memories.
The presence of a proper human soul would eradicate the need to tame a wild beast. When the beast hatched, it wouldn't be a wild mindless beast, but Erolia herself.
He wished she would arrive in a better circumstance, but he would settle for it. Being a tier 4 beast right after being tier 2 would be very confusing. He would need to teach her control or she could well lead to natural disasters every time.
The beast wouldn't necessarily increase in power. But since it would be Erolia and not a bird, he saw it as an advantage. If Noah could feel the excitement, he would be choking on it. Unfortunately, he couldn't. All he felt was focus and emotional emptiness.
After the gem merged with the spirit, it exploded into particles of harmless light as the egg itself gained a purple hue amongst the three other colors.