<Education>
- 1969: B.A. in Philosophy, Sophia University, Japan
- 1971: M.A. in Philosophy, Graduate School of Sophia University, Japan
- 1973: Graduate School of Theology, Pontifical Urbaniana University, Rome

<Career>
- December 9, 1974: Ordained to the Priesthood (Myeongdong Cathedral)
- February 14, 1986: Ordained as Bishop (Archdiocese of Seoul)
- February 27, 1995 – February 28, 1999: First President, Unified Catholic University
- October 8, 2002: Installation as Bishop of the Diocese of Jeju
- October 17, 2008 – October 2014: Served as Bishop of the Diocese of Jeju