Hagane no Renkinjutsushi: FULLMETAL ALCHEMIST

A fundamental principle of alchemy is that obtaining something requires giving up something of equal value. Edward and Alphonse Elric learn this the hard way when they attempt human transmutation, a forbidden act. Their failure results in severe consequences—Edward loses his left leg and Alphonse his body. Edward sacrifices his right arm to bind Alphonse's soul to a suit of armor. Hoping to regain their original forms, Edward becomes a state alchemist and pursues automail limbs. Their search for the Philosopher's Stone, a legendary object that bypasses the Law of Equivalent Exchange, leads them into a national conspiracy. With the help of Colonel Roy Mustang, Lieutenant Riza Hawkeye, and Lieutenant Colonel Maes Hughes, they uncover the truth behind the Stone and their country's hidden past. As they investigate a serial killer and race against time, the brothers question whether their actions will restore their humanity or cost it.