As the key awakened, it also started changing its color with time. The key started transforming, similar to what the main key did.
The transformation was much slower than it had been in the real world, but that slow transformation also gave Azekiel a moment to talk with his Mirror Reflection.
Even though Azekiel was talking to himself, at times he forgot that the Mirror Reflection was him in essence and treated it like a stranger who couldn't understand what he had been thinking.
After Azekiel expressed his opinion on the topic of his mother, silence ensued. The Mirror Reflection didn't speak much in response, as Azekiel seemed quite convinced that he was going to kill her. As for the reality of the situation and if he could actually do it, it was hard to guess even for him.
The key finished its transformation, and the magnetic attraction stopped as soon as it was a success. The key started falling down, only to be caught by Azekiel's Mirror Reflection.