The 25th Head Priest OHTANI Kojun (Dharma name: Shaku Sennyo)

June 13, 1977 Born in Kyoto
August 4, 1992 Ordained as Jodo Shinshu Hongwanji-ha priest and designated as Shimmon (Heir Apparent to Monshu)
April 18, 1993 Officiated the Commemoration of Successor Installment as Shimmon
March 2000 Graduated from Hosei University, Faculty of Law
March 2002 Completed the Shin Buddhism Master's Program at Ryukoku University
March 2005 Fulfilled credit requirements for the Shin Buddhism Doctoral Program at Ryukoku University
April 1, 2003 Honorary President, Jodo Shinshu Hongwanji-ha Young Buddhist Association
April 1, 2008 Vice Resident Priest, Tsukiji Hongwanji, Tokyo
April 1, 2010 Special Adviser, Scouts Association of Japan
December 31, 2013 Retired from Vice Resident Priest, Tsukiji Hongwanji

During his tenure as Vice Resident Priest of Tsukiji Hongwanji, he actively engaged in propagation in the Tokyo metropolitan area while officiating a number of Buddhist services at the temple. He also served as lecturer at the Jodo Shinshu Hongwanji-ha Buddhist seminaries, namely, Chuo Bukkyo Gakuin (Central Buddhist Seminary) and Tokyo Bukkyo Gakuin (Tokyo Buddhist Seminary), as well as Ryukoku University's Graduate School of Practical Shin Buddhist Studies, and REC (Ryukoku Extension Center) Community College.

Buddhist Services officiated
1991 The 400th Memorial for Kennyo Shonin and the 400th Anniversary of Hongwanji's Relocation and Return to Kyoto
1998 The 500th Memorial for Rennyo Shonin
2009 The Service to Commemorate the Completion of the Great Restoration of the Hongwanji Founder's Hall
2011 The 750th Memorial for Shinran Shonin
2012 The 750th Memorial for Shinran Shonin Goshoto*
*The 750th Memorial was conducted throughout most of 2011 ahead of the actual anniversary of Shinran Shonin's passing on January 16. The final session of memorial services is called Goshoto 御正当 (lit., "actual") and concluded on January 16, 2012.