Green Under the Steel Arm

Introduction: Lin Yan, an alchemist on Earth, glimpsed the door of truth due to a bewitched refining ceremony, and gained omniscient alchemical knowledge and eternal life at the cost of losing his limbs. He traveled around the world of Fullmetal Alchemist, and accidentally traveled to the Grimm world due to a space storm, and was "resurrected" in the body of the late Grimm hunter Kelly Burkett. The original owner died protecting his son Nick and lost his left arm. Lin Yan then used alchemy to build a mechanical arm himself, imitating Edward who always wore long sleeves to hide it. Well aware of Green's dangerous fate, he chose to secretly protect Nick as a "father", eliminate the hidden threats of wesen, and quietly lay out the knowledge of hunters, but he always avoided it. When Nick steps into the police force and is about to awaken the power of Grimm, this secret protection across dimensions finally reaches the most critical moment of guidance. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.