Personally, I completely understand Jean. He was once forced to accept some "friends'" words and trust they wouldn't have any reason to lie since they wouldn't have been capable of selling Adele for their own benefit, and then cover it up. But it turned out, that's exactly what happened. Now, he thinks history could repeat itself with Adele's fiance: how can Jean make sure this allegedly "favored" duke won't change sides, and decide it's much less "trouble" for him to just sell to the emperor all that "sensitive" info he has about both Adele and Jean, in exchange for a lifetime supply of medicine? ...What could make a bigger bargaining chip for the fiance to hold over the emperor, more than the "sensitive" info about a girl who's healing power can rob the emperor of his monopoly over the "cure" (and therefore, of his power), and of the one guy who not only leads a potentially "seditious" rebellious guild, but who can prevent that one girl's murder from ever passing undetected, since he can serve both as a witness to her existence and to her *real* identity (due to knowing her since she was a child?)
That's why, I totally understand why this guy doesn't want to take a leap of faith by entrusting both his and Adele's lives to the abilities, intentions and *loyalties* of some duke he barely knows (and that he also knows that Adele barely knows...) and who for all Jean knows, appeared out of nowhere... Jean *knows* the emperor could have just said to the black haired fiance: "I've been wanting to get rid of that pesky unruly guild for some time! Go, gain their trust, find out who else knows about this girl's real origins, and kill two birds with one stone by eliminating those who know of her, along with all the members of that pesky, unruly guild! It's hunting season for insubordinates and rebels!"
Personally, I completely understand Jean. He was once forced to accept some "friends'" words and trust they wouldn't have any reason to lie since they wouldn't have been capable of selling Adele for their own benefit, and then cover it up. But it turned out, that's exactly what happened. Now, he thinks history could repeat itself with Adele's fiance: how can Jean make sure this allegedly "favored" duke won't change sides, and decide it's much less "trouble" for him to just sell to the emperor all that "sensitive" info he has about both Adele and Jean, in exchange for a lifetime supply of medicine? ...What could make a bigger bargaining chip for the fiance to hold over the emperor, more than the "sensitive" info about a girl who's healing power can rob the emperor of his monopoly over the "cure" (and therefore, of his power), and of the one guy who not only leads a potentially "seditious" rebellious guild, but who can prevent that one girl's murder from ever passing undetected, since he can serve both as a witness to her existence and to her *real* identity (due to knowing her since she was a child?)
That's why, I totally understand why this guy doesn't want to take a leap of faith by entrusting both his and Adele's lives to the abilities, intentions and *loyalties* of some duke he barely knows (and that he also knows that Adele barely knows...) and who for all Jean knows, appeared out of nowhere... Jean *knows* the emperor could have just said to the black haired fiance: "I've been wanting to get rid of that pesky unruly guild for some time! Go, gain their trust, find out who else knows about this girl's real origins, and kill two birds with one stone by eliminating those who know of her, along with all the members of that pesky, unruly guild! It's hunting season for insubordinates and rebels!"