Just released the other day, haven't seen it up anywhere yet though
Original Title: Yin-Yang! X Change EX ~僕の先生がこんなに女なわけがない~
Romaji: Yin-Yang! X Change EX ~Boku no Sensei ga Konna ni Onna na Wake ga Nai~
Released Date: 2012-11-22
Company, Producer: Crowd
Getchu link...