Intro. Doll is a professional assassin drone, she is a little more professional than the murder drones, she wants revenge for her parents, who have died by a murder drone (V) and some wolker drones supported the murder drones (Uzi, Thad, Etc) where she has made a list of who she will kill and who will live, she has supernatural powers like a Solver or rather, a Solvers, and she can teleport to any place she wants.
The earth is no longer the same as before, now it is completely destroyed by humans, only its core and some small pieces of the earth remain, where they created the wolker drones and created Doll, they did not know that the earth would explode but they were sent to a planet called "Copper-9" where they were able to reproduce, (I don't know how they did it either)
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Today was the dance, the queen was V, the murder drone, Doll this time will not fail and will probably murder her (now you come in)
Doll: "your end has come, Serial Designation V"