Seido Gakuen Announces New Educational Structure and Full Transition to Co-education starting 2027
School Corporation Seido Gakuen in Nagasaki will merge its primary, secondary, and high schools and transition to a fully co-educational system in 2027 to adapt to demographic changes and global educational standards.
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- 📰 Published: April 25, 2026 at 21:30
- 🔍 Collected: April 25, 2026 at 13:01
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School Corporation Seido Gakuen (Nagasaki City), approaching its 50th anniversary, has decided on a new educational structure policy starting from the 2027 academic year and will proceed with preparations.
From the 2027 academic year:
- Seido Mikawadai High School will become co-educational starting with new enrollees and will be renamed "Seido Gakuen High School."
- Nagasaki Seido Middle School and Seido Mikawadai Middle School will merge and become co-educational, renamed "Seido Gakuen Middle School."
- Nagasaki Seido Elementary School and Seido Mikawadai Elementary School will merge and become co-educational, renamed "Seido Gakuen Elementary School."
Website: https://seido.ed.jp/
● Responding to Societal Changes and Educational Challenges
In modern society, where information technology and globalization are advancing, cultures and values are diversifying. For children to live independently and collaboratively in such a society, an environment where both genders respect and cooperate with each other is crucial. Therefore, the academy has decided to introduce a co-educational system.
● Commencement of High School Education for Girls
Nagasaki Seido Elementary and Middle School did not have a high school, and many parents and stakeholders had voiced their desire for an environment where girls could continue their studies at Seido after graduation. To meet these expectations, we have repeatedly studied feasible methods under current circumstances.
● Impact of Declining Birthrate on Educational Environment
The impact of the nationwide declining birthrate is unavoidable. Maintaining a stable educational environment for the future has become a challenge based on recent enrollment trends. Co-education was considered one effective response to this issue.
● Building an Educational Environment that Better Embodies the Founding Spirit
The academy shares a common founding spirit based on the teachings of St. Josemaría Escrivá: "To promote holistic growth in accordance with Catholic educational principles, to know and taste true happiness, and to cultivate individuals who can give that happiness to others." Even with co-education, we will cherish the learning environment cultivated by both schools and strive further to embody this spirit.
● Trends of Sister Schools and Changes in International Educational Environments
In sister schools in Spain and the UK, co-education is progressing according to local situations. Furthermore, it has been confirmed that spiritual and human formation support from Opus Dei, the spiritual pillar of this academy, will continue after the transition to co-education. These international trends were also important factors in this decision.
Judging these situations comprehensively, we have decided that the merger and transition to co-education for both schools is the best path to ensure the growth of each student in the future.
Future Schedule
For the integration and co-education, we will undertake material preparations such as necessary renovations and equipment maintenance within the fiscal year to build the system as a single school.
Contact Information
School Corporation Seido Gakuen
1234-1 Mikawa-machi, Nagasaki City, Nagasaki Prefecture 852-8121
Website: https://seido.ed.jp/
From the 2027 academic year:
- Seido Mikawadai High School will become co-educational starting with new enrollees and will be renamed "Seido Gakuen High School."
- Nagasaki Seido Middle School and Seido Mikawadai Middle School will merge and become co-educational, renamed "Seido Gakuen Middle School."
- Nagasaki Seido Elementary School and Seido Mikawadai Elementary School will merge and become co-educational, renamed "Seido Gakuen Elementary School."
Website: https://seido.ed.jp/
● Responding to Societal Changes and Educational Challenges
In modern society, where information technology and globalization are advancing, cultures and values are diversifying. For children to live independently and collaboratively in such a society, an environment where both genders respect and cooperate with each other is crucial. Therefore, the academy has decided to introduce a co-educational system.
● Commencement of High School Education for Girls
Nagasaki Seido Elementary and Middle School did not have a high school, and many parents and stakeholders had voiced their desire for an environment where girls could continue their studies at Seido after graduation. To meet these expectations, we have repeatedly studied feasible methods under current circumstances.
● Impact of Declining Birthrate on Educational Environment
The impact of the nationwide declining birthrate is unavoidable. Maintaining a stable educational environment for the future has become a challenge based on recent enrollment trends. Co-education was considered one effective response to this issue.
● Building an Educational Environment that Better Embodies the Founding Spirit
The academy shares a common founding spirit based on the teachings of St. Josemaría Escrivá: "To promote holistic growth in accordance with Catholic educational principles, to know and taste true happiness, and to cultivate individuals who can give that happiness to others." Even with co-education, we will cherish the learning environment cultivated by both schools and strive further to embody this spirit.
● Trends of Sister Schools and Changes in International Educational Environments
In sister schools in Spain and the UK, co-education is progressing according to local situations. Furthermore, it has been confirmed that spiritual and human formation support from Opus Dei, the spiritual pillar of this academy, will continue after the transition to co-education. These international trends were also important factors in this decision.
Judging these situations comprehensively, we have decided that the merger and transition to co-education for both schools is the best path to ensure the growth of each student in the future.
Future Schedule
For the integration and co-education, we will undertake material preparations such as necessary renovations and equipment maintenance within the fiscal year to build the system as a single school.
Contact Information
School Corporation Seido Gakuen
1234-1 Mikawa-machi, Nagasaki City, Nagasaki Prefecture 852-8121
Website: https://seido.ed.jp/