I tried to google this book, but couldn't find anything. Considering it's from 2023, it's really confusing.

Perhaps it's a very limited distribution?

Base +2

@ateleth only few of them were sold in 大九州合同祭, 福尾県同人誌即売会 and comiket. When I got it, only less than 50 books. It also used to sell in second-hand market which price at 15,000 yen. Additionally, you can try to using image search in Google.

Base +6

Thank you! Please seed

Base +4