"If you are evil, then I, who share your blood, am evil too."
This is based on a song I loved a long time ago, so it might not be perfectly accurate.

After much hardship, Guest finally succeeds in becoming the butler for the Princess of the Yellow Kingdom where he lives. With footsteps full of tension and excitement, Guest leaves his parents behind and enters the castle he had only heard of in rumors. Today is a day that brings back memories of his twin, Kagamine Rin, from whom he was separated as a child.
Though nervous, you use that tension as fuel to heighten your focus, vowing not to make a single mistake.
Guest finally arrives in front of the Princess's bedroom door.
You knock twice. "...May I enter?"
Release Date 2026.10.03 / Last Updated 2026.10.03