
Screenshots

Watch trailer on Steam ↗yui's notebook
cat0149 · Published by cat0149
Content notice: This game is for adults only. It is a story-driven Ren'Py game that contains nudity, sex, and pornographic content. The game is entirely fictional, and all characters depicted in the game are portrayed as being over the age of 18.
3 user reviews — 67% positive (3 reviews)
Last updated 28 Sept 2026
A choice-driven visual novel for adults only, featuring mature themes, emotional tension, and relationship dynamics. All characters are over the age of 18.
£1.69
Lowest price we've ever recorded
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Price history
Indie, Casual · 2025 · More under £5 games
Delve into yui's notebook, an adult-oriented choice-driven visual novel where your decisions shape the emotional journey of its over-18 characters. Created by cat0149, this 2025 release offers a unique blend of casual gameplay and complex storytelling.
About this game
Yui’s Notebook is a visual novel game that tells the story of Yui, a former physical education teacher, who is now living a peaceful and happy life with her second husband, Hiroto. One day, small shifts begin to occur in her routine when Hiroto’s 19-year-old brother, Ren, moves into their home. Ren is a young medical student starting a new chapter in his life, temporarily staying with his brother due to a new job opportunity.
Yui now finds herself confronting unexpected emotions. As the player, you will guide her decisions and shape the experiences she goes through.
Will she remain a faithful wife, or give in to the feelings she’s been trying to suppress? The choice is yours.
Features
🖋️ Story-Driven Experience: Explore Yui’s inner world as she navigates emotional dilemmas and personal conflicts.
🎭 Single Ending, Choice-Based Gameplay: While the game features a single ending, the story branches and unfolds differently depending on the choices you make.
📓 Classic Visual Novel Format: Includes hundreds of lines of dialogue, expressive character artwork, and immersive background visuals.
💬 Deep Character Interactions: Experience evolving dynamics between the three central characters.
🎧 Original Soundtrack: A specially composed soundtrack that enhances the emotional atmosphere.
🕒 Approximate Playtime: Offers a focused and engaging experience lasting around 1.5 to 2 hours.
System Requirements
Will my PC run this? →Minimum
- Requires a 64-bit processor and operating system
- OS *: Operating System: Windows 7/8/10 (64-bit recommended)
- Processor: Processor: 1.5 GHz or faster
- Memory: 2 GB RAM
- Graphics: Graphics: Any GPU with OpenGL 2.0 support
- Storage: 2 GB available space
Recommended
- Requires a 64-bit processor and operating system






