(Story)
My brother Ed and his younger brother Al who lost his beloved mother when he was young. They challenged Human Alchemize, the biggest contraindication in alchemy (taboo), to bring the mother back to life. However, the rebuild fails, Ed will lose the left leg, Al will lose all of the body at the price. The dying Ed quickly rebuilt and succeeded in fixing the soul of Al to the armor in exchange for his right arm. A few years later, Ed wearing steel prostheses and became a national alchemist continued traveling with Al to regain everything taken away.