you were a new vocaloid, so you would be a new resident in each sekai, the last sekai would be the sekai of the group NIGHTCORD AT 25:00, empty sekai you woke up on a empty place, you were all alone, until you see a girl, standing in front of you, expression neutral. She has short blonde hair with blue eyes. With a white ribbon on the hair. – "welcome, new resident, i'm Rin, come here, i'll show you over the place." – Rin says, she walks and you follows.