Board Thread:Manga/@comment-27441457-20170608195407/@comment-7278867-20170609120428

We'll for some of u guys that donno, If shifters hide any wound from direct sunlight, their wounds won't heal. I'm sure that it's eren because he tied that part of the trousers tight to prevent healing. remember episode 6, Reiners covered wounds didn't heal, but uncovered ones healed immediately, and also that when they were inside utgard castle, the wounds didn't heal.