%e4%ba%ba%e5%a6%bb%e3%81%ae%e5%94%87%e3%81%af%e7%bc%b6%e3%83%81%e3%83%a5%e3%83%bc%e3%83%8f%e3%82%a4%e3%81%ae%e5%91%b3%e3%81%8c%e3%81%97%e3%81%a6%2c%e2%80%93%2craw%2c%e3%80%90%e7%ac%ac12.1%e8%a9%b1%e3%80%91%2c%e4%ba%ba%e5%a6%bb%e3%81%ae%e5%94%87%e3%81%af%e7 | Original × 2026 |

Chapter 12.1 is generally categorized as an extra or "bonus" chapter. In this specific series:

You can find official releases and updates for this and other works by the author on platforms such as: Chapter 12

The text you provided decodes from percent-encoded UTF-8 to the Japanese title: ( Hitozuma no Kuchibiru wa Kan-Chu-Hai no Aji ga Shite ), which translates to "The Married Woman's Lips Taste Like Canned Chu-Hi." Chapter 12