History
| April 1963 | Educational corporation Seifunankai Gakuen is established as a sister school of Seifugakuen At 7- 64, 5-chome, Ayazono, Takaishi-shi, Osaka-fu |
| March 1964 | Former main building is completed |
| December 1964 | Former South building is completed |
| March 1976 | Former gymnasium is completed |
| March 1983 | Enlargement of former south building is completed |
| April 1983 | Junior high school is opened Forms sister school partnership with the Brisbane Grammar School, Australia |
| April 1984 | Forms sister school partnership with The Royal Ulver Hampton School, England |
| April 1985 | Forms sister school partnership with the Monmouth School, UK |
| October 1985 | Forms sister school partnership with the Philippine Carregio de San Juan de Letras |
| September 1986 | Art building is completed |
| September 1982 | The 2nd gymnasium is completed |
| May 1989 | Dawn's Bell is erected |
| March 1995 | New school building (Atagamine-kan) is completed |
| April 1997 | Forms sister school partnership with Beijing University Affiliated Junior High School, China |
| March 1999 | Off-campus, the Misaki campus is established |
| April 1999 | Co-education starts at the junior high school |
| March 2000 | The 1st new gymnasium is completed |
| April 2002 | Co-education starts at the high school |
| April 2013 | New school buildings (Main Building, West Bldg., East Building) is completed |
| May 2013 | The 2nd gymnasium is completed |