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.
Visual NovelStory RichFree to PlayCuteCasualAnimeRelaxingFemale ProtagonistFamily FriendlyEmotional
The engine and game code were implemented with an AI coding assistant.
ArtCore
Character art, backgrounds and event CGs were made with AI image generation.
Music & SFXCore
The two theme songs, in-game BGM and sound effects were made with an AI music generator.
TranslationCore
The English text, a translation of the main story and extras, was made with AI tools.
MarketingCore
Store page images were made with AI image generation.
WritingPartial
Extra scenarios, concept and writing were done with AI tools.
Not used, per the developer
In-game AI
Not mentioned
Voice
Read the full disclosureQuoted from the Steam store page
This game uses generative AI for the following content. All of it was generated during development and shipped with the game; no content is generated at runtime.
- Music and sound effects (2 theme songs, in-game BGM, SFX): Suno
Released games rank by momentum: peak players over 24 hours, growth against the previous days and new reviews, with a launch boost that fades over the first week. Released and upcoming games are charted separately; estimates and stars are never mixed in.
Made by
Developer
PS
PLK Studio
Developer on Steam
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Mashumaro Trigger!
