What did Yonoi see in Jack?
Honestly, I can't figure out where the admiration comes from or why Yonoi appreciated him so much.
At the very start of the film, from Yonoi perspective all he knows is that he was called in to sit on a trial of a "difficult man" and he had no idea what crime or anything Jack had done up until the proceedings. In the proceedings as well there was nothing that really stands out for Jack's character that would appeal to Yonoi - if anything it would deter him due to Jack being a wiseass and cracking jokes. Where did he acquire the urge to have him in his camp?
Was there something explained in the book that wasn't explained in the movie? Perhaps in deliberations they gave more backstory to Jack?