After the passing of Nichiren Daishonin, Sanenaga Hagiri, the load of the Minobu area, began to commit various acts of slander which were in direct opposition to the teaching of the Daishonin. Nikko Shonin, as the second head priest of Kuonji Temple at Mount Minobu, in order to protect the True Law and True Teaching bequeathed to him by his Beloved Maser, Nichiren Daishonin, was left with no other alternative but to leave Mount Minobu. In the second year of Sho'o (1289), accompanied by Nichimoku Shonin and his other disciples, Nikko Shonin left Mount Minobu, taking with them the Dai-Gohonzon of the High Sanctuary of Honmon as well as the other sacred treasures that belonged to the Daishonin. The following year, in the third year of Sho'o (1290) in October, under the generous support and protection of Tokimitu Nanjyo, Head Temple Taisekiji was founded at the foot of Mt. Fuji in Ueno.Since that time for the past 700 years, the One and Only True Buddhism of Nichiren Daishonin of the infinite past of Kuon-ganjo has been strictly protected and correctly transmitted down through the ages at the Nichiren Shoshu Head Temple Taisekiji.
Today all the believers of Nichiren Shoshu throughout the would fervently wish and love to make pilgrimages to Taisekiji which has developed into a Great Dojo (the place to practice True Buddhism) and a fountainhead for the movement for worldwide Kosen - Rufu.