Sayo Koizumi Cat Pocket Diary 2026 / MIDORI

A beloved collection of compact diaries featuring adorable cat illustrations by Sayo Koizumi. Each variant offers the same charming design concept—whimsical, seasonal dog scenes—tailored to different sizes and formats.

Key Features

• Cat motif by Sayo Koizumi: Each page is filled with colorful, lively cat artwork and seasonal scenes that change as you flip through the diary.

• Monthly block layout: Even the mini size uses a two-page spread per month, making it functional despite its compact form.

• Useful extras: Includes index tabs (for quick access) and a “My Memories” section for jotting down personal highlights.

• Compact & portable: Designed to slip easily into bags and pockets while still providing enough structure to be useful daily.

• Consistent design across sizes: Same aesthetic and functionality but scaled for different use cases—ultra-compact for pockets, slightly larger for more writing space.

Specifications