When Juntu hears Zatiel's proposition, he was surprised. Instead of being used as a tool without free will, they offer him the chance to work together and assure him that he will not be betrayed or discarded.
The Blood Ruby Centipede has live for thousands of years, and he knew of the cunningness of humans and how they can transform a horrible truth into a beautiful lie.
He could not remain silent since that will mean having his ego destroyed, so his options were limited.
"Can you explain to me what is exactly a Soul Guardian Beast?" Juntu was hoping to obtain more information before deciding what to do and was looking expectantly at Zatiel.
The Neo-Demon smile grew wider when he saw this and his attitude became friendlier.
"Of course, is it not too complicated." Zatiel proceeds to explain the method and what will exactly happen with the Blood Ruby Centipede.