(Caitsith) いろは～秋の夕日に影ふみを～

This is the original game version from year 2007, Included 1.01 update patch

Test and confirmed works fine on my windows 11 64bit Japanese

https://caitsith.biz/products/iroha/index.html

https://www.dlsite.com/pro/work/=/product_id/VJ010666.html

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(If you like the game, Please buy it to support the developer)