In 1976, when Sohonzan Daigo-ji Temple was part of the Daigo school, the Shingon sect had its 1100th anniversary after opening the Daigo mountain; Shinjo ITO acted as 大導師 due to the order from Sohonzan Daigo-ji Temple of Daigo school, Shingon sect, and also conducted the Buddhist memorial service of 真如苑慶讃法要 to commemorate the anniversary.
昭和51年、真言宗醍醐派総本山醍醐寺では、醍醐山開創一千百年を迎えたが、伊藤真乗は、真言宗醍醐派総本山醍醐寺の命を承けて大導師を勤め、醍醐山開創一千百年真如苑慶讃法要を執行している。