During the first part of the trip, Aleni didn't have to do anything. She only truly worked when she had to find food, but then her worries increased when the attack at the birthday party happened, and Ameria began to fight. In many situations, Aleni thought that she would have to reveal herself, which was one thing she didn't want. It wasn't for the mission. It was for herself. She didn't want to reveal her existence to those who were so oblivious to her existence in the first place.
However, in the end, Ameria never got hurt, and she even was the one who killed the enemy who had created the whole mess. It had been around that point that Ameria noticed Aleni's presence, she noticed it, but she couldn't quite pinpoint where she was… it was thanks to the fact that Zaos taught her a new technique.
