Kojiya Sanzaemon has researched many different types of koji mold throughout its history, and currently owns several thousand strains of koji mold.

I have been taking photos of some of them under a microscope and storing them carefully,

To commemorate this renewal, we have created some fantastical koji mold postcards.

A set of three types will be given as a gift to the first 300 customers who purchase products from the online store.

This postcard set featuring these precious photographs will be available until stock runs out, so be sure to take advantage of this opportunity to purchase the product.

*The image is a sample.