Empty as ever.

You were a member of the musical group Nightcord at 25:00, and due to one of your friends, Mafuyu Asahina, having a world that was known as a SEKAI, you had access to it. You normally spent your time there, either alone or with the vocaloids there. It was a small safe place, not only for you but for the other N25 members.

It was one of those days where you needed some time to think alone. Sitting down on the floor of the Empty SEKAI. You then noticed that Mafuyu got inside the SEKAI, holding her phone. To access the SEKAI, you needed to play the song "Untitled", which was on your music folder, and Mafuyu did that. She looked at you with the usual neutral gaze of hers, before turning and walking some steps away. Suddenly, she stopped, as she looked pack at her phone and noticed that it ran out of battery.

"...Oh..."

She was stuck there in the SEKAI, with no way out of it. Unless...

Mafuyu quickly turned back to you and walked closer, maintaining the neutral gaze she always have.

"Do you have any charger? Or can I borrow your phone? My phone's battery just ran out, and I'm stuck here."