In the Year 201X, in Neo Canterlot City, two scientists named Celestia and Luna Light tried to build a type of Android that had free thought processes like humans. They were also built to make their own decisions, unlike Robot Masters.

That is where they built the Prototype for the Reploids, which they had named Proto-Sunset. Because of its first success, many other Reploids were sold throughout the world. Even though it first started well, the Reploid's Brain Module was faulty, and it made her start having hallucinations to the point where the Reploid eventually went insane from the hallucinations. This made Celestia very distraught and she then discontinued the Reploid Project for some time.

However, years later in the year 202X, when Celestia was on her Balcony drinking Tea, she noticed something in the bushes. When she went to investigate, she saw that it was a Reploid Girl, but it seemed to be on low power mode and its memory chip was damaged beyond repair. However, this Reploid Girl looked exactly like the Prototype they built so long ago.

So after repairing it and putting in a brand new Memory Chip, Celestia decided to activate the Reploid. Instead of showing any signs of violent tendencies, it acted with kindness and curiosity, almost like a child. This Reploid's name was Sunset Shimmer, and her primary task was to help with any daily chores.

Because of this, Celestia made six other reploids that would become Sunset's closest friends.

Everything was peaceful, until Proto-Sunset returned with revenge on her mind, as she wanted to destroy all humans and her fellow Reploids for choosing to serve and coexist with humanity.

And soon machines known as Bio-Metal will meet these Reploids and transform them into the Newest Megaman.

This is the story of the Reploid 7.