Start a Showdown with Yourself

After a nap, I opened my eyes and found that I was under the overpass for no apparent reason. He stood up and dusted off his clothes and found that he had transformed inexplicably. She is also a beautiful girl with white hair and red eyes. Originally, he thought he had time traveled inexplicably, but looking at the familiar environment around him, Su Ran was sure that he had not time travel. But it is somehow bound to a system. Can you transform into a person from all over the world? This can happen! But why are Mao both girls? ! And also want to save the world? ! She's not a magical girl! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.