Yelen watched Eren transform. The shift in his appearance was nothing short of miraculous as it wasn't just a disguise but a change at a molecular level that appeared to have stemmed from his Bloodline.
That was also the reason the requirements for this ability were so strict and kept the disguise limited to the people closer to the person's original build.
Eren's new form was almost unrecognizable from his previous self, revealing the uniqueness of the disguise bloodline.
Although this Bloodline was not a high tier Bloodline like his Dragon Bloodline or even his Devourer Bloodline, he found it to be just as useful, even thanking the person who brought this Bloodline to him.
Unfortunately, the person was no longer alive as he had been killed by Eren.
"How am I looking?" Eren asked, turning to Yelen who was looking at him in surprise.