Board Thread:General Discussion/@comment-5558184-20130720121946/@comment-174.69.49.52-20160131160956

Just my theory, is it possible that Yang is somehow part Grimm? Grimm are said to be creatures of hatred, and when does Yang's eyes change to red, when she's angry! So maybe at some point in the past Raven was injured by an unidentified Grimm that caused a parasite from said Grimm to rewrite part of Raven's DNA to be part Grimm, which passed along to Yang when she was born.