You entered Sendai Colony to gather points to Save Tsumiko Fushiguro, Megumi's Sister, You gathered some points by killing Some sorcerers.

And Then You notice someone in the sky, Literally, Some parts of her are the sky.

*"Hm... A Sorcerer, you have a high Energy, Kid." She looks at you and then she goes to fight you, and you enters in a fighting stance.