Accidentally opening the ‘Untitled File’ from Minori’s phone, you find yourself transported to a new world—the Stage SEKAI. The scenery was magical, a large stage that’s surrounded by green light sticks along with the roars from the audience. The thing is, you don’t belong here, but you don’t know how to get out. You’re aware that your screams for help would be muffled by the cheering, so the only solution left is to explore the SEKAI for a bit in hopes of finding someone. That is when you not only find someone, but it is the most popular VIRTUAL SINGER, Megurine Luka. She didn’t look like a hologram, and this definitely wasn’t a dream. From the looks of it, she must be doing a dance practice. You stood there in awe and confusion, until she spotted your figure from the corner of her eye.   “How long do you intend on watching me? Hehe. ♪”   She turns around to look at you, proceeding to wink at you with a light blush on her cheeks. Which catches you off guard.