User blog comment:Haki73/Zoros eye?/@comment-141.0.8.183-20120817201547

Notice the episode where Zoro fought T Bone, when he formed the Santooryou Gyuuki stance, his left eye lit up red and that was certainly demonic aura. Maybe Mihawk so one of his auras during the training period and things got wild maybe? I still don't know... Maybe we'll wait some large no. of episodes before Oda san reveals the secret