ましゅまろトリガー！
Mashiro has marshmallow-soft cheeks, and her big sister Mio absolutely adores her. Ordinary days—days that come only once—and the precious moments hidden inside them. A slice-of-life novel about the happy chaos of two sisters. A sweet, marshmallow-soft little while, just for you.
Every Day with Mashumaro
Her skin is as white as her name, and her cheeks are soft and springy and impossibly squishy.
The whole neighborhood knows this first-grader as "Mashumaro-chan"—Mashiro plus marshmallow.
Endlessly curious, entirely without guile.
She gets her words wrong now and then, and that only makes her more lovable.
Watching over her, always close by, is her big sister Mio.
With their parents overseas, she looks after Mashiro day in and day out.
This is a slice-of-life comedy about the happy chaos these two get into.
Laugh, unwind, and once in a while, tear up
Everyday life with Mashiro, Mio, and all the people who fill their days.
A lot of laughing, a lot of comfort, and the occasional lump in your throat.
The kind of days that grow more precious when you look back.
Over 160,000 words of "days that come only once."
Bright little moments, stacking up until one day they're memories you'd never trade.
Cast
Mashiro — A first-grader with famously squishy cheeks, the neighborhood's beloved "Mashumaro-chan." Always honest, always full of wonder.
Mio — Mashiro's big sister. A good cook with her feet on the ground—and hopelessly soft on her little sister.
And plenty more. Friends, neighbors, and family—each with a personality all their own—color the two sisters' days.
What's Included
The main story (roughly 10–15 hours; chapter select lets you revisit any part at any time)
Opening movie and ending sequence, both with theme songs
Music Room (13 tracks—songs and BGM)
Gallery (19 event CGs)
9 bonus extra scenarios (readable from the Gallery)
Auto, skip, backlog, 12 save slots, and the rest of the comfort features
This might be for you if you're looking to…
Laugh at something wonderfully silly
Be charmed by a little kid simply being herself
Settle into something warm and gentle
Rest, because life has been tiring
Read a little at a time before bed
Please Note
This game is free. There are no in-app purchases and no paid content of any kind.
Supported languages: Japanese and English.
The music, the graphics, part of the extra scenarios, and the English text in this game were created using generative AI. Details are listed in the in-game credits.
Streaming, Videos and Fan Works
Except for the activities listed under Not allowed below, individuals and companies may upload playthrough videos, livestream the game or otherwise broadcast gameplay without contacting us or asking permission first.
Because this is a long game, even a one-session try-out stream or a partial playthrough is warmly welcome. Enjoy as much or as little as you like.
All music in this game was created specifically for the game, and no third-party tracks are used. We have not registered any of the game's music with Content ID ourselves, and you do not need to mute the game audio while streaming. However, we cannot guarantee against claims generated by third parties or automated platform systems outside our control. BGM and sound effect volumes can also be adjusted separately from the settings screen.
Allowed
Upload playthrough videos or livestream on YouTube, Twitch, NicoNico and similar platforms
Stream the entire game, including the ending (there are no restrictions on how far you may play)
Publish stream archives and upload edited videos
Monetize using the official features provided by each platform (video ads, memberships, tips and so on)
Upload clips from streams (only with permission from the original streamer)
Post screenshots on social media
Create and publish fan art and other derivative works
Optional requests
We'd be glad if you mentioned the game's title or store page URL in your video or stream description (not required)
If your video contains spoilers, we recommend saying so in the title or description
Not allowed
Content contrary to public order or accepted standards of decency
Content that violates the law or the terms of service of any platform
Content intended to defame, discriminate against or harass any individual or organization
Content presented in a way that could cause viewers to mistake it for official content from the game or its creator
Extracting images, music, audio, video or scenario text from the game and redistributing them as standalone assets
Reposting or redistributing gameplay footage or in-game audio from the game, in whole or in large part, without meaningful original contribution through commentary, reactions, explanation or editing. This includes uploads that add only a brief introduction, a few cuts, occasional short reactions, borders, logos, simple captions or other merely nominal changes
For clarity, full-game playthroughs—including the ending—livestreams and stream archives are not treated as reposts when commentary or reactions are a regular and substantial part of the presentation as a whole, or when substantive editing or explanation adds meaningful original value.
The creator accepts no responsibility for any trouble or damages arising from streaming, broadcasting or video uploads. Please do so at your own risk.
We may ask for a video or stream to be removed if it violates these terms or if the creator considers it seriously inappropriate.