Sagami Province (Kamakura) · Kamakura–Nanbokuchō

Sōshū is the tradition of the shogunal capital, Kamakura — the youngest and most dramatic of the five. Forged in mixed steels at high heat, its blades blaze with nie, chikei, and kinsuji. Masamune and his school carried Sōshū to a height many consider the apex of the Japanese sword.