Isoai Juroemon Masahisa was an expert of naginata. After the death of his lord, he intended to kill himself but was informed of Oboshi's plan. Masahisa was a gentle and kind man, yet fought violently at the raid.
katana mei: Mitsumori, length 2 shaku 9 sun
wakizashi mei: Kunimune, length 2 shaku