Touki is a second-year student at Murakumo Academy who comes from a lineage of famous katana smiths, but has spent his time with machines instead of following that tradition—until the day the goddess Ayase appears, claiming to be the guardian deity of his family home, and sets a chain of meetings in motion. A transfer student named Saya appears on a moonlit night. His childhood friend Tsubaki—the school's strongest swordswoman—is always nearby. His kouhai Shion keeps breaking her weapons and needing replacements. The ojousama Freesia is studying blacksmithing herself. As Touki crafts swords for each of them, the bonds formed around that work grow into something more. A visual novel about the rediscovery of a craft and the relationships it makes possible.