Emperor Su-jun (Hatsuse-be-no-waka-sazaki) — the second-to-last emperor in the Kojiki’s list — reigned only four years (587-592 CE) before being assassinated by the Soga clan’s powerful chieftain Soga no Umako. The Kojiki records the four-year reign and the burial mound without a word of the assassination, the political crisis it provoked, or the consequent installation of Empress Suiko (Su-jun’s niece, the chronicle’s closing figure). Compare the Hebrew Bible’s similarly restrained treatment of the violent overthrow of late Israelite and Judahite kings — the books of Kings and Chronicles often compress regicides into a single phrase and move on. The chronicler’s discipline is the same across cultures: when the documented political violence is too contemporary or too embarrassing to detail, the convention is to mark the reign-length, mark the burial, and let the silence itself signal that more was happening than the text can comfortably record. By 712, when the Kojiki was finished, Soga no Umako’s descendants were no longer in power but the Soga’s role in Su-jun’s death was politically delicate enough that the chronicle preserves it only as a four-year reign that ended in a mound at Kurahashi.