Board Thread:Shingeki no Kyojin Manga/@comment-5774380-20150509024757/@comment-26451068-20150516021239

I also recall Mikasa mentioning that her family lived in the countryside of Shiganshina because her family wasn't welcome in the capitol. (Again, I'm paraphrasing, as it has been a while since I read the chapter), but that could hint that her family was shunned for their relationship to Kenny the Ripper. I realize there is not much to back up the claim, but I myself think that all of this could hint at a close familial relationship, such as Mr. Ackerman and Kenny being brothers. As for why Kenny spent more time looking for Kuchel than Mr. Ackerman, well... I think it's pretty obvious from her health and job that she was worse off than Mr. Ackerman. Or, Kenny might just care more about her sister, or look at her as his "frail little sister who needs as much help as possible", whereas he doesn't worry about his brother Mr. Ackerman because he can do just fine on his own.