Alderaan and Therius only grew closer after their visit to Taeshi. When Livia was born and Emma allowed Therius to come to visit his daughter, the former queen of Akkadia had made the decision and gave Alderaan a chance to be with her and Xion.
At that time, it seemed to make sense for the boy to come with Emma as she was in a better place and state of mind than the former king of Akkadia back then. Alderaan saw how much losing Emma destroyed Therius. His foster father changed so much and he started doing so many erratic things.
"Y-you... you know my father?" Livia's eyes widened and she felt a pang of longing in her chest. She didn't ask her mother about her father a lot because the expression on Emma's face when she talked about her former husband was bittersweet.