The Elrics learn Armony is the daughter . He is one of ten famous Alchemists and considered a world authority on catalytics – the study of making efficient alchemy. He was researching the "Philosopher's Catalyst", a legendary material that has powers comparable to the Philosopher's Stone. When the town of Hiessgart (where he and his daughter resided) came under attack of chimeras, he brought the refugees to safety and led the efforts in building New Hiessgart. When Wilhelm requests the Elrics to bring them Etherflowers, they are accompanied by Armony who is still wishing to learn alchemy. Although initially reluctant due to the Professor's orders, Edward and Alphonse teach Armony alchemy. However, Armony's body is weakened and two small wings appear in her back. Later, it is revealed that Armony is not who she thinks she is. Armony is a product of Wilheim's daughter, Selene. In an accident involved with the catalyst, Selene's body fused with it and she became Armony. Armony, however, has memories of the two of them together, causing her to be oblivious to her situation. The catalyst in her body is the reason why she was not attacked by the rampant chimera.