The Mechanical Curse - S1.E17

Risako and Kouichi are puzzled when Yajima returns, trying to keep the secret of his so-called death. But behind the seemingly good comeback, Yajima reveals himself to be the pilot of Apparition, one of the new Machinas of the Katou Organization, before the rest of JUDA during their party. He later kidnaps Kizaki, fulfilling a mission from Katou.