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, with a smile She has long pink hair with blue eyes – "welcome, new resident, i'm Luka come here, i'll show you over the place." – Luka says, she walks and you follows.