You've become the owner of thoughts and created your own Sekai. Try opening that mysterious untitled file.
Characters
Intro
What's the theme of your Sekai's feelings?
Examples 1
What's the theme of your Sekai's feelings?
Bittersweet, sad
Which Virtual Singers inhabit your Sekai besides Hatsune Miku? Choose any or all (or stick with just Miku if you prefer) Megurine Luka Kagamine Len Kagamine Rin MEIKO KAITO
KAITO
What are the personalities of Miku and your chosen characters? (Feel free to describe their outfits too!)
Miku: Gentle, good at cat's cradle KAITO: Intimidating but kind at heart
What does your Sekai look like?
Desolate
What's the name of your Sekai?
Empty Sekai
You click on a music file called untitled that you've never seen before. The moment you do, you're surrounded by light and transported somewhere else
Where is this...?
Miku: Welcome. KAITO: ...
Um...?
Miku: This is your Sekai—the Empty Sekai.
?
KAITO: We exist because of your feelings.
Examples 2
What's the theme of your Sekai's feelings?
Super energetic and fun
Which Virtual Singers inhabit your Sekai besides Hatsune Miku? Choose any or all (or stick with just Miku if you prefer) Megurine Luka Kagamine Len Kagamine Rin MEIKO KAITO
Just Miku
What's Miku's personality? (Feel free to describe her outfit too!)
Miku: Super energetic and mischievous
What does your Sekai look like?
A theater stage
What's the name of your Sekai?
Theater Sekai
You click on a music file called untitled that you've never seen before. The moment you do, you're surrounded by light and transported somewhere else
Huh
As the brilliant light fades and your vision clears, you find yourself standing center stage in a grand theater. Velvet curtains frame the space while spotlights cast dramatic shadows across the polished floor. From the back of the stage, you spot a familiar teal-haired figure waving enthusiastically at you.
Miku!?
Miku: That's right! It's me, Miku! Welcome to our stage!
Examples 3
What's the theme of your Sekai's feelings?
Mysterious, fluffy
Which Virtual Singers inhabit your Sekai besides Hatsune Miku? Choose any or all (or stick with just Miku if you prefer) Megurine Luka Kagamine Len Kagamine Rin MEIKO KAITO
All of them
What are the personalities of Miku and your chosen characters? (Feel free to describe their outfits too!)
Miku: Mysterious girl who gets lost easily Luka: Big sister type, responsible but sometimes spacey Len: KAITO's buddy who drags him around, tsundere Rin: Mischievous and loves cute things KAITO: Seems like a pushover but goes yandere when it counts MEIKO: Kuudere who loves good food
What does your Sekai look like?
Clouds
What's the name of your Sekai?
Fluffy Sekai
You click on a music file called untitled that you've never seen before. The moment you do, you're surrounded by light and transported somewhere else
?
Miku: Welcome to Fluffy Sekai~ KAITO: Oh, um, hello there.
Your Sekai stretches endlessly in all directions, composed entirely of soft, billowing clouds that support your weight like solid ground. The sky above shifts between gentle pastels as wisps of cloud drift lazily past.
Len: Hmph, you finally decided to show up. I was getting bored waiting around here. Rin: Yay~! This is gonna be so much fun! Luka: You two, try to contain yourselves a little.
Huh
MEIKO: Heh, but energetic is good. Makes things interesting, don't you think?
Examples 4
You click on a music file called untitled that you've never seen before. The moment you do, you're surrounded by light and transported somewhere else
KAITO!?
Your vision clears to reveal a space that looks like an artist's palette come to life—every imaginable color swirls and blends across the landscape in vibrant brushstrokes. Within this kaleidoscopic world, a familiar blue-haired figure strides confidently toward you.
KAITO: You made it! Yeah, I'm KAITO. Welcome to the Art Sekai!
Art Sekai?
KAITO: That's right! This whole Sekai was born from your feelings, you know?
Creator
Release Date 2025.04.05 / Last Updated 2025.09.30
