Welcome to the endless dimension :)

Welcome to the endless dimension :) is the fifth episode of the OseanWorld anime.

Summary
A red-haired person with black eyes finds themselves in the Endless Dimension, completely unaware of what it is. Choice appears behind them and spooks them, before telling them their name is Aiku, to which Aiku denies this. Choice notices this Aiku is a little different because they don't have stars in their eyes. Aiku is deeply confused by this, and then Choice disappears as Aiku looks around and notices a group of Shadow Kids dancing nearby. Aiku finds themselves within the circle of the Shadow Kids and begins to feel dizzy. Aiku asks many questions, such as if they're dying and if someone can help, before becoming sacrificed by Choice for Labaeyga, who says it's time to get Yameii.

Trivia

 * The text at 0:22 says "Who are you?".