A series of ceremonies related to Senso are called "Senso-no-gi (ceremonies to become a new emperor)" which are regarded as a part of the emperor's constitutional functions, being composed of the first ceremony named Kenji (ceremony for imperial succession) to be executed immediately after the demise of the previous emperor, and the second ceremony named Sokuigo Choken-no-gi (ceremony to have an audience with the emperor after enthronement) for the Sanken-no-cho (chiefs of three organizations of power, namely the prime minister, the chairmen of House of Representatives and the House of Councillors, and the Chief Justice,) and being followed by the next ceremony named Sokui-no-rei (ceremony of the enthronement) which is to be held after the end of ryoan (period to mourn for the passing of emperor.)
践祚にかかる儀式を『践祚の儀』といい、先帝崩御後直ちに行われる『剣璽』及び新帝が即位後初めて三権の長（内閣総理大臣、衆議院議長、参議院議長、最高裁判所長官）を引見される『即位後朝見の儀』は共に国事行為とされ、先帝の諒闇が明けて行われる即位の礼と続く。