was a Tenrikyo-based sectarian movement. The name Ibaragi Ippa means the of , a Japanese religious figure.

Ibaragi Ippa did not develop into a separate shinshūkyō (Japanese new religion), but rather currently exists as a clandestine religious movement on the Internet.

Early history Ibaragi Mototaka was born on 3 October 1855 in present-day Kita-ku, Osaka.Samayoi Blog "安政2年(1855)10月3日、大阪西成郡北野村松本佐兵衛の次男信次郎（入信後 基敬と改める）として出生。" [Shinjirō (later renamed to Mototaka after his conversion to Tenrikyo), the second son of Matsumoto Sahē from Nishinari-gun Kitano-mura (today's central part of Kita-ku, Osaka) in Osaka, was born on 3 October 1855.]Yorokobi Isande "…大阪の西成郡北野村の松本佐兵衛の二男として生まれる。" [… he was born as the second son of Matsumoto Sahē from Nishinari-gun Kitano-mura (today's central part of Kita-ku, Osaka) in Osaka.] Ibaragi eventually became a Tenrikyo follower under the spiritual guidance of and later founded Kita Grand Church in Ikuno-ku, Osaka. As an active regional leader for the proselytization of Tenrikyo beliefs, he eventually became an active official working within Tenrikyo Church Headquarters. Among the officials, Ibaragi was noticeable for being the sole critic of Taishō Construction, the project to build the during the Taishō era, due to potential financial constraints experienced by the followers.Forbes, Roy Tetsuo (page 130) "While Tenrikyo considers the promise as being tied to purchasing lumber for a construction project (the building of the current North Worship Hall that is now known as the 'Taisho construction'), …"Forbes, Roy Tetsuo (page 139) "Ibaragi was said to have been critical of the Taisho construction, the sole honbu-in to voice such an opinion, insisting that it would place an unnecessary financial burden on the Tenrikyo membership." This became one the pretexts for the dissonance between Ibaragi and the rest of the officials.

Ibaragi experienced , or spirit possession, on the night of 18 November 1911.Forbes, Roy Tetsuo (page 139) "Ibaragi is said to have had his first kamigakari on the night of November 18, 1911." However, his spiritual experience was not approved by the rest of the Tenrikyo officials. This is despite Ibaragi telling his followers not to organize a schism.Forbes, Roy Tetsuo (page 141) 103 While Ibaragi urged his followers to avoid forming a rival religious movement to Tenrikyo, his charismatic successors (called okikai-sama お機械さま) have survived and their version of the Tenrikyo teachings has gained a limited presence on the Internet. However, the riff between the two parties failed to achieve any peace. He and his son, , were expelled from the Tenrikyo religious establishment on 16 January 1918. This event was known as the .Forbes, Roy Tetsuo (page 140) "… the decision was made at a meeting of leading honbu-in to expel Ibaragi Motoyoshi together with his son Mototada, the head minister of Kita Daikyokai, on January 16, 1918."Matsui, Keisuke (page 71) "茨木基敬による茨木事件など異端が相次いだが，これらの異端活動の中で最大の影響を与えたのが大西によるほんみちの開教である。" [Attempts of heterodox splinter sects such as the one led by Ibaragi Motoyoshi, the main figure of the Ibaragi Incident, existed; among the sects at that time, the most influential one (to the future sects) is Honmichi that was started by Ōnishi Aijirō.]Matsui, Keisuke (page 75) "23) 1918（大正7）年1月16日,天理教教団本部の中枢にいた茨木基敬が,自分に天啓が下るとし,神意を伝えはじめた事件を指す。" [23) This incident (of explusion) happened on 16 January 1918 when the central figure within the Tenrikyo's headquarters, Ibaragi Mototaka, previously received a divine revelation (tenkei) and propagated his interpretation of the divine message.]

Ibaragi Mototaka died on 29 October 1929.Yorokobi Isande "昭和4年（1929）10月29日に出直した。享年75歳。" [(Ibaragi Motoyoshi) "passed away for rebirth" on 29 October 1929. Age 75.]

Legacy Ibaragi Mototaka's history with the Tenrikyo organization became a landmark event among Tenrikyo historians. He is viewed today as a renegade figure who did not advocate organizing a rival religious organization that could potentially antagonize the Tenrikyo establishment. This was the opposite of the approach taken by Ōnishi Aijirō, with the foundation of Honmichi, and , with the foundation of .Samayoi Blog "この事件は、本部准員飯田岩治郎のおこした異説安堵事件と共に、教会本部の中枢にいる者の唱えた異説として当時の天理教内に 大きな衝撃を与えた。" [The (Ibaragi) Incident, along with revisionism-motivated Ando Incident perpetuated by the associated member Iida Iwajirō, gave a huge shock within the Tenrikyo establishment at that time as they proposed different doctrinal perspectives.]

Ibaragi Mototaka's religious movement still exists today mainly in a form of online activities under a leader with the title, , as the semantic element, , means 'machine' or 'mechanism', a word that Ibaragi had fond of; also being active with the name, , that is not an officially registered religious organization in Japan.Murayama, Motomasa "機械という言葉が、茨木氏の言葉で頻出するが、これは天啓者を意味する。" [The term, kikai, was often uttered by Ibaragi (Mototaka), it denotes a divine revelator (tenkeisha).]

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