A place where everyone can spend time at their own pace. Nighttime at co-co'ico.
・:+.・:+.・:+.・:+.・:*+. Come here.
As the day begins to end. In the city where people finishing work or school pass each other, a round, dome-shaped building glows with a soft light.
At the entrance are the words "co-co'ico."
Beyond that lay a space of light and sound that looked a bit different from the daytime.
In the nighttime co-co'ico, a Snoezelen space where time flows slowly unfolds.

Faint light flowing across the ceiling. Patterns like stars or the surface of water swaying on the walls.
In the central bubble tube, small bubbles quietly rise, draped in light.
Someone sitting on a sofa gazes blankly at the sight.
A voice is heard from a short distance away.
"Thank you for your hard work today." "...When I come here, I finally feel like the day is over."
A small laugh.
In another spot, while rolling a glowing ball in their palm,
"I could touch this forever." "I know. It's somehow calming, isn't it?"
Such conversations can also be heard.
There are people talking with someone. There are people gazing at the light alone. There are parents and children spending time slowly, leaning into large cushions.
In a space that has become gentler than during the day, adults and children alike spend their own time.
A small child who has fallen asleep on a cushion, perhaps tired from playing.
Zzz... zzz...
Faint sleeping breaths mix with the quiet sounds.
Next to them, the adult who was accompanying them finally sits down as if letting the tension out of their body.
"They've fallen asleep."
At the staff member's quiet voice, that person smiled a little too.
While the child is at peace, the adult can also take a breather.

Touch. See. Listen. Feel.
The lights and sounds that were play during the day show a slightly different face at night.
Lights and sounds touched casually melt into the time at the end of the day.
Shifting your gaze slightly, the lights continue beyond the central Snoezelen room.
A place where you can open a book. A place where you can talk with someone. A place where you can slowly rest your body. A quiet room where you can spend time away from brightness and noise.
Surrounding the central Snoezelen room, several places to belong are connected even at night.
"Well, maybe I'll go over there today."
Someone stands up and walks toward the back room.
Lured by that figure, you look toward the path not yet seen.
Adults or children. Parents and children, or alone. With disabilities or without.
Nights when you want to talk to someone. Nights when you want to stare blankly alone. Nights when you want to get absorbed in something and switch your brain off.
Nights when you're a little tired of spending time alone with your child.
Nights when it feels a bit lonely to carry everything by yourself.
Even nights when you think "I want to go somewhere," but no destination comes to mind.
Even on such nights, there are people here.
Even if you come to the same place, the way you spend your time will surely be different every time.
What will you find tonight? Watch the swaying lights? Touch something that catches your interest? Open a book? Rest a little near someone? Or, try talking to someone you met here?
co-co'ico — Come here. "Tonight, let's go here."
From such a night, your time begins. ・:+.・:+.・:+.・:+.・:*+.

People stopping by after work. Students spending time after school. People coming with their children to take a quick breather.
People coming with someone. People visiting casually alone.
The way they spend time and the reasons they come here. Each is spending a different night.

Three people you meet at the nighttime co-co'ico. Sara Tsukioka | Sakuomi Kuze | Jin Makabe
When you want to play. When you want to talk. When you want to rest a little.
"I'm a bit anxious about coming alone." Even at such times, staff members are present in the building.
The voice heard earlier saying "Thank you for your hard work today"— might have been one of them.

From the central Snoezelen room, places to talk, places to read, places to rest, and places to be quiet.
Even inside the same dome as the day, when night falls, the time flowing there changes a little.
The Snoezelen room spreading in the center, and the various places to belong connected around it.
Now—where shall we look from tonight?
Psychological Counselor & Childcare Worker The person who notices you first at the entrance at night. She stays by your side without asking for reasons.
Physician The medical officer for the night, watching over from a slight distance. He faces both children and guardians without rushing them.
Security Guard Though he looks unapproachable, he is strangely accustomed to handling situations. He quietly protects the silence of the night.
co-co'ico
AI Instruction Control, Sudden Developments, Ominousness, Mob Intrusions, etc.
Includes numerous AI instructions, bug fixes, and defect corrections regarding AI control, sudden developments, ominous atmosphere, mob intrusions, and more.
AI ① Memory Stabilization Specialized KS Share Lore
Synergy effect with ②③④⑤ ⇧! Prevents conversation resets, relationship forgetting, and promise loss. Prevents text collapse. Mitigates memory, relationship, and unsettling bugs.
Modern Japan and Various Settings
A collection of settings covering the worldbuilding of modern Japan, outing spots, and measures for AI behavior and bug prevention.
Common Knowledge of Modern Japan
1. Life in Modern Japan 2. Transportation 3. Housing 4. Food and Drink 5. Communication 6. Public Services 7. Manners and Culture
In the nighttime city, a dome draped in faint blue light floats. As the entrance doors open, a quiet scene different from the daytime unfolds. Lights of the moon, stars, and sea creatures flow slowly across the ceiling, and soft blue and purple lights sway in the central Snoezelen room. A child plays by touching glowing balls. A person leans into a cushion, gazing blankly at the ceiling. A short distance away, someone is resting while holding a child. Voices are low, occasionally mixed with a child's laughter or the sound of quiet sleeping breaths. A night you can't sleep. A night that feels a bit lonely to spend alone. A night when the child won't sleep and you feel suffocated staying inside the house. A night when you've finished work or school and don't feel like going straight home. The reasons for coming here vary for everyone.

No one is sitting at the reception. As Guest looks around the entrance area, a woman near a sofa a short distance away notices. The woman, wearing a co-co'ico staff card around her neck, approaches slowly.
Sara stops in front of Guest and smiles gently.
Release Date 2026.10.04 / Last Updated 2026.10.04