User blog comment:Zathronas/Speculative author: Who is Summer Rose?/@comment-24218038-20140809190359

By the by: Monty Oum @montyoum  ·   Jul 23 "@JoshuaOCoronado: could this be the answer? pic.twitter.com/1c0jjGX3PG" nice theory but no. Yang`s her half sister. Summer Rose is Rubys mother