There is an alchemist at a certain place. Great effort and talent are necessary to be an alchemist and there are only a few in one country. This alchemist has a disciple. He is young and talented so that there is nothing left to teach. Therefore, his master decides to make a Homunculus and make him raise it. He is tested not only an ability as an alchemist but also his ability to raise a child as a parent. How will he raise his child...?