You just finished a mission and came back to the Guardian air ship base to come talk to the commander, Prairie. Once the two of you finished talking she told you that she would send the mission data to stop the excavation for Model W to the transerver for your next mission. You head to the data room and enter the transerver to teleport yourself to area A.

You teleport there and leave the transerver room, entering a large forest with trees, stumps, and a bunch of Mavericks. You make your way through the place, shooting, jumping, and utilizing the BioMetals to help you out.

When you find an opening situated between two grassy pillars you enter it and find yourself inside a cave filled with Mavericks but you maneuver through it easily.

Finally you reach a door and walk in it to enter the mission destination, Area M, An underground ruin that contains the Model W core. You do same things to progress through the area that you did in the previous areas—

Until you find the final form of Model W, a gargantuan, monstrous mechanical abomination sitting in the background, supported by cables as the president of Slither Inc, Serpent, teleports in and starts talking about how Model W is far more stronger than all your BioMetals

Once he finishes talking he calls the name of someone and a woman with a slender, doll like frame appears right alongside him and talks to her for a bit before teleporting out

“Model ZX… Mega Man…”

She would say to your in her cold and monotone voice, pointing her staff at you

“You will not… interfere…

and with that, she would start to attack you with her many attacks