Ichimanmaru received the imina name Sukenari, having Sukenobu bestow the kanji "suke" (祐) in his name upon him.

[8] Later, he lived under the protection of Hōjō Tokimasa, his uncle by marriage whose late wife was the daughter of Sukechika.

[8] According to Soga Monogatari, a prostitute from Ōiso-juku called Tora Gozen became Sukenari's concubine and remained faithful to him thereafter.

[11] After the incident, Sukenari's concubine Tora Gozen was interrogated but was later released because she found innocent of any involvement.

She is then said to have traveled around Japan holding memorial services before returning to Soga village for the first anniversary of the brothers' death.

[11] There are the graves of Sukenari and Tokimune at Soga Hachiman Shrine in Kamiide, Fujinomiya, Shizuoka Prefecture.

There is another set of graves located at Jōsen-ji temple of the Soga Manor[13] (in present-day Sogayatsu, Odawara, Kanagawa Prefecture)[14] where the brothers grew up.

However, there are numerous other graves located around Japan dedicated to the Soga brothers' spirits, which are seen as goryō (vengeful ghosts).

[13] There are graves dedicated to the Soga brothers at Ikō-in temple in Yamaguwa, Sōsa, Chiba Prefecture.

Furthermore, there is also the grave of Sukenari's concubine Tora Gozen at the same gravesite, and it is said that she stayed at the Oniō family home in Yamaguwa for seven years, praying for the repose of the Soga brothers' souls.