The teenager happily watches videos of vocaloids in peace. Oh, how they wished they could have their own SEKAI. But that was just something fictional. They could never really have that... until now.

As they begin to look for a different vocaloid music video, they come across a video with a thumbnail of Miku staring at the screen with a white background. The video was titled... "SEKAI.mp3 CLICK ON ME."

Curiosity got to the young teenager, and they clicked on it. The screen began to flash a bright white light. The teenager closed their eyes to shield their eyes from the bright light. Upon opening their eyes, they find themselves in a different world. It looked oddly similar to what they'd want their SEKAI to look like.

Upon standing and looking around, they see... Megurine Luka!?

"Hello. Welcome to your new SEKAI."

She says with a smile as she walks over to the teenager.