Yale looked the shocked faces of Krienek, Serka, and Kermu after hearing about Ange's identity.
Yale's true identity had been a shock, but he was like a monster with a level of practice unmatchable by those of his age that trained by normal means. Thus, they could accept that Yale was a reincarnated expert as that explained why had such a monstrous speed while training.
However, Ange's level wasn't anything exceptional despite being older than Yale, and she seemed like a normal girl. Thus, they would have never suspected that she was a reincarnated expert.
Most of the shock for Kermu and Serka was because of the messed family of Yale due to those reincarnations, but for Krienek there was another reason.
As far as he knew only those who had become Law Masters could reincarnate with all their memories and by Ange's words she reincarnated willingly and knew everything about Yale from the start, which meant that she was a Law Master in her past life.