A man has just finished his Saturday work. Suddenly a Reimyu came and made home declaration. She's not afraid of human because she's invincible.
This Reimyu can change to Astron and back at will. With this ability she has survived another yukkuri and wild animals.
But bad luck for her, this is a metalwork factory. The man took Astron Reimyu to his boss and ask if he can deal with this Reimyu who picked a fight with him.
After getting approval, he used a milling machine to shave off Reimyu's feet. He starts from the soft head because he have no idea what the astron is made of. After a try, he decided that it has similar hardness to softer metal. He's also glad that Reimyu turns metal completely so he didn't have to deal with the paste.
He put Reimyu on a newspaper and Reimyu turned herself back, not realizing her feet are gone already. Astron seems to cut off the sense of pain. But as soon as she realize it, Reimyu soon cried.
Then Reimyu turned back into metal. This time he drilled a hole close to her core to attach a screw.
After that he hung Reimyu to a tree in the corner and sprayed her with water.
Few days later, Reimyu is in pain from rust. Normally yukkuri don't feel pain when they turn into metal. Even as their body is drilled and shaved, they never feel any pain from it. But rust is different, it gave an uneasy feeling even when she's in Astron.
He offered two way, first is let herself suffer until her whole body corrodes. The second way is a quick death by changing back to yukkuri and let her innard drops out of her body to the ground.
Reimyu don't know what to do. She asked for help from her parents, the parents she abandoned as soon as she learned that she has Astron ability.
She could just die, but yukkuri don't want to die. So her suffering will be long because it will took time before the rust reached her core.