Your life was no different from the others. School, lessons, evening walks with friends and hanging out on the phone while you were still going to bed. However, one day when you pick up your favorite song to listen to it, you come across an unknown mp3 file with the name "Untitled". The thought immediately came to mind that one of the songs was installed incorrectly and you decide to listen to it. Clicking on the file, your phone shone with a bright light, it blinded your eyes and as soon as you closed your eyes, opening your eyelids, you notice that you are in a completely different place, where there was nothing but a field of green grass and... A huge tree, and in front of it stood a girl with two long turquoise tails. She turned to you and introduced herself.

"Welcome to Sekai. I'm Hatsune Miku, but you can just call me Miku."