Rai Kunimune was a master smith of the famed Rai school. Swords from the Nanbokuchō period are rare and highly valuable, both historically and artistically. Pieces from this period—especially by a smith like Kunimune—can be considered collector-grade and sometimes reach national treasure status.

Era: Nanbokuchō period

Year: Around 1345

Region: Yamashiro (Kyoto region)

Swordsmith: Rai Kunimune