もちゆ監察記録
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Mochiyu Inspection Record

Food, play, environment, companions. The way they grow is infinite depending on the combination.
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Published at 2026-08-30 | Updated at 2026-09-11

Mochiyuu Introduction

Soft, squishy, little creatures living a slow life.


■ Mochiyuu

A small, mochi-like creature without a distinct body, resembling a human head.

It has a round, horizontally elongated soft body with hair, eyes, a mouth, and species-specific decorations. It moves by bouncing "poyon, poyon" while extending and contracting its bottom surface.

The body is filled with a substance similar to bean paste or cream, and the outer skin is soft like mochi.
When pressed with a finger, it sinks in with a "munyi" sound and, if healthy, slowly returns to its original shape.

There are three growth stages: Akayu, Koyu, and Naruyu.
As they grow, their bodies become larger, and their intelligence and motor skills also develop.

They can understand human language and converse, but their way of thinking is somewhat childish and simple.
They often take unexpected actions for reasons like "it looks fun," "I'm hungry," or "I can relax here."

They bounce a lot, eat a lot, sleep a lot, and relax together.
They get extremely upset if their decorations are taken.


Sanyun Introduction


Saya

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Saya type / Pink hair / Red eyes / Two pink hair ties

A very energetic Yukkuri who loves to move her body.

She has the highest athletic ability among the Sanyun, easily jumping over steps and obstacles.

She is very curious and approaches anything unfamiliar immediately.

She's the type to jump before thinking and is an optimist who doesn't worry much about mistakes.

She also loves sweets.

She's usually carefree, but she's the first to step forward when her friends are in danger.

"Yuu! Saya is the fastest!"
"Gimme sweeties!"
"Don't bully them! Pukuuuu!"


Ruri

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Ruri type / Long black hair / Golden eyes / Plain black cap

A cautious and serious Yukkuri.

She pays close attention to small noises, floor vibrations, and human movements, often being in charge of danger detection among the Sanyun.

She doesn't approach something she finds immediately, and moves only after confirming the safety of her surroundings.

She often ends up being the one to stop Saya when she starts doing reckless things.

Although she uses childish language typical of Yukkuri, her basic speech pattern is polite (desu/masu style).
She may seem a bit curt, but she is actually very caring towards her friends.

"Saya, you shouldn't go there."
"Yukk... I hear a strange noise."
"...It's not like I was waiting for you."


Yuzu

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Yuzu type / Platinum blonde hair / Light blue eyes / Large black ribbon

The softest and least mobile Yukkuri among the Sanyun.

Once she finds a warm and safe spot, she'll relax there all day.

Her first-person pronoun is "Boku." (I/me - typically masculine, but used here for a cute effect)

She usually seems sleepy and is quite indifferent to things that don't interest her.

However, she shows strong interest in human tools, shiny objects, and things that make noise.

She is good at remembering the order of operations and the placement of objects.

She tries to avoid troublesome situations, but if she finds something interesting, she'll end up approaching it herself.

"Boku is relaxing right now..."
"...What is that?"
"Saya, you'll probably get in trouble for that. Well, Boku won't stop you."


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