Kinoko could only use her imagination as Amaia described the circumstances, and how Yuvo operates and adapts. If this bio-android manages to control his power, then there might be any chance in being able to stop him. What's worse, is the fact that he has been going at for a very long time. This plan that 21 is able to construct sounded like a rather logical plan. In some ways, the princess could believe that her experience and intelligence as a scientist may be equal to Bulma, if not, better. That was one of the traits that Kinoko could admire about 21. 

Like everyone else, she looked at Kitsu, starting to believe him to be the perfect individual that Yuvo might not be able to decipher. 
"Please, Kitsu? From what we hear, millions of lives are at stake", she almost begged.