Tsukimichi - Volume 15 (Light Novel‪)‬

With over 1.4 million copies in circulation, the smash-hit fantasy returns with Volume 15!
While visiting the Kingdom of Limia, the Kuzunoha Company makes a stop in a small nation within demon territory—Keryuneon—to take care of some business. But what they find is a country struggling to survive: brutal winter cold, relentless heavy snowfall, and a chronic labor shortage have left it in dire condition.
After seeing the devastation firsthand, Makoto has an idea—could hot springs be the key to combating the snow and revitalizing the region?
Meanwhile, when Tomoe hears that Makoto has started digging for hot springs, she explodes with excitement. A self-proclaimed Japan enthusiast, she immediately launches into plans far beyond his expectations—setting her sights on developing a full-scale hot spring resort unlike anything this world has ever seen!