The second-generation Masahiro was the son and successor of the first-generation Kawachi Daijo Masahiro, born in Kan'ei 4 (1627) and known by the common name Sadenji. In his father's lifetime he signed Masanaga. He received the title Musashi no Daijo in Manji 3 (1660) and was promoted to Musashi no Kami the following year. His father died on the fifth day of the second month of Kanbun 5 (1665), when he was thirty-nine, and on the thirteenth day of the fourth month he was transferred to Kawachi no Kami. A court appointment document, the kuzen-an, addressed to him as Musashi no Kami Fujiwara Masahiro[[c:1]] leads the published sources to conclude that he took the Masahiro name almost immediately after his father's death. He died in Genroku 12 (1699) at seventy-three, and the published record counts him, like his father, among the collaborators of the main Hizen house.
The judges set him remarkably close to his father. In both suguha and midareba, they write, he is skilled second only to his father, with virtually nothing to choose between them[[c:2]]. His work in either manner is described as exactly like that of the first Masahiro, and his technique as in no way inferior to his father's. He was above all adept at the irregular temper, and one record names his showy choji-midare as his own domain, 「正に彼の独壇場である」.
That midareba is a choji-based temper mixed with gunome, set wide and broadly undulating. Two features within it are named as characteristic of the second generation's hataraki: gunome with rounded heads and an arrow-notch, yahazu-like element. Long ashi and yo enter, the nioi is deep and the nie thick, gathering in places in the valleys, and kinsuji and sunagashi run through the hamon in abundance. Some blades add tobiyaki, and one is described as the showiest work in his record[[c:3]]. As with the waki-Hizen generally, a straight yakidashi may appear at the base. The jigane is a tightly packed ko-itame with dust-fine ji-nie laid thickly and fine chikei entering, several entries naming it the komenuka-hada peculiar to Hizen swords, and on one robust piece the hada is said to stand slightly. The boshi runs straight to a ko-maru.
The suguha is the second register of his record, and the published sources draw attention to it: 「初代正広よりも直刃の作品が多く見られることにも注意したい」. His suguha works are fewer than his midareba, yet more numerous than his father's, and even and consistent in quality. On a typical chu-suguha katana the jigane is said to be packed even more tightly than usual, and one deep-nioi chu-suguha is described as recalling the suguha of the main house. Two further chu-suguha katana are singled out because the temper is deeper in nioi and thicker in nie than his usual straight work, with ashi and hataraki in abundance, and they are said to show a certain boldness[[c:4]]. His bodies are often broad, thick and heavy in the hand, at times with an extended or large kissaki.
The two generations are told apart by signature. The second Masahiro most often signs Hizen no Kuni Kawachi no Kami Fujiwara Masahiro, occasionally Fujiuji in place of Fujiwara, and the published sources set out how the forms of the characters Fuji and Hiro differ between father and son, the second generation's Hiro carrying one more stroke. Carving on his blades is described as extremely rare. One katana, dated Kanbun 12, carries carving added later by Nobukuni Yoshinao and a cutting-test inscription of Kanbun 13 by Yamano Kanjuro.
Masahiro is graded Jo saku by Fujishiro. He has no National Treasures and no Important Cultural Properties, and his record lies in the Juyo rank, where twenty-six of his works have been designated. One katana with a broad, irregular temper and tobiyaki in the shape of sun and moon is called his finest and a sword representative of Hizen work[[c:5]]; it carries a gold-inlaid cutting-test inscription by Yamano Kanjuro Hisahide and the sword name Tsugi-kosode. Another bears a cutting test with the name Senpu, and the published sources note that test inscriptions are extremely rare on Hizen swords. A dated wakizashi of Kanbun 7 is valued as a reference piece. Recorded provenance is slight, and a signed example of the Juyo rank comes to market only from time to time.
