Chairman of the Board

Our chairman of the board is a firm believer that education is one of our most important basic needs to be able to lead a successful and fulfilling life. Moreso, learning from early years makes a big impact in shaping a child to their fullers potentials. This is why young learners are very close to her heart. She envisions children as the future leaders of the world who are capable of making positive changes for the next generations to come. As a person who has first-hand experience in the value of international-mindedness through her work exposure and collaborations with international groups and institutions, she regards that learning English is an essential tool to become confident communicators. Understanding diversity and respecting other cultures are also critical in today's fast-changing world. It is her goal to enrich Aiwin students with BASIC skills (Balanced, Adaptable, Self-confident, Imaginative and Communicative) as a tool to become independent, responsible and globally-minded citizens. In pursuit to provide a solid foundation of education a parent can give to a child, Aiwin International School was built to offer a a unique blend of learning programs, an excellent learning facilities, and a professional team of educators. To manage school affairs and strive to improve in education and child care, our School Principal and Administrative Support Team continue to uphold our philosophy and values as a prestigious international school.


Our Staff

Aiwin International School is committed to safeguarding and promoting the welfare of students and their families, and expects all employees to share this commitment. The school has a detailed code of conduct and child protection policies and safeguarding procedures to guide its actions. All our staff and faculty undergo a rigorous recruitment and training process. As a result, we have an outstanding faculty who provide a safe, nurturing environment for our students and shares the goal of promoting high teaching standards.

Administrative andSupport Staff

  • Darlin Caroline Okada

    Darlin Caroline Okada

    School Principal

    Bachelors of Science in Human Ecology major in Family and Child Development Bachelor of Science in Nursing.
    With over ten years of teaching experience as a Licensed Teacher in Early Childhood Education, Elementary and Secondary levels; held educational leadership roles including Curriculum Coordinator; with over 4 years instructing Medical English to Medical and Health Care Professionals; Registered Nurse in the Philippines and New York. She is fond of baking, cooking, playing the guitar, flower arrangement, exploring different culture and geographies.

    Welcome to Aiwin International School where we provide a structured and purposeful international learning environment that allows our children to develop Aiwin's BASIC skills, compassion and confidence into becoming globally responsible citizens. I am truly proud to offer our school programs and curriculum that is continuously being developed to uphold child-centered, holistic and integrated approach in learning. It is a great honor for me to be a part of and lead our professional and talented team of teachers and staff who dedicate themselves in helping our young learners achieve their fullest growth and potential in every aspect of their school life.

    My professional experience gave me an opportunity to teach and train in various educational institutions where I saw how teaching methodologies and school policies could work well together to fulfill student’s learning needs. It also gave me a deeper understanding of how important it is to consider parents and caregivers as active participants in their child’s education and care. Strengthening the connection between home and school ensures a child’s success not only in school but also later on in facing bigger challenges in life. I believe that creating a balance among education, care and governance gives our children the best and most memorable educational experience.

    We continuously strive to become a premier international school that offers excellent learning facilities and well-balanced curriculum while maintaining a warm and supportive family atmosphere that has always characaterized our school. I would like to see our school become even more remarkable, with professional teachers and supportive parents on board, in inspiring our students to develop a love for learning, excellence and service to society.

    Thank you for choosing Aiwin International School. Our doors are always open to welcome you.

  • Riaan Van Der Walt

    Riaan Van Der Walt

    Head Teacher Kindy Homeroom Teacher

    Bachelor of Arts in History and Philosophy; Certified Educator by South African Council of Educators; Over 6 years of teaching experience teaching children in an International School; enjoys reading, hiking and rock climbing.

    Hello, I’m Riaan Jacobus Van der Walt. I come all the way from South Africa. I have been living in Japan for five years and have been teaching for seven. I earned my Bachelor’s degree and postgraduate certificate in education from the University of South Africa, and have been working to improve my education.

    I have multiple hobbies and things that occupy my time. You can find me painting or reading a book on rainy days, while at other times I enjoy hiking and rock climbing to challenge myself physically. I study Japanese tea ceremony and have lately spent a lot of time working on my programming skills as well.

    I hope that I can contribute to the further development of all the students in my charge; learning and growing together with them. I hope to make my classroom a fun and educational place, where each day is engaging for the students. At the same time I hope to ensure they meet the end of the year more enriched and able to take on the challenges of the life that awaits them.

  • Jessica Patras

    Jessica Patras

    Head Teacher & Jr.Kindy Homeroom Teacher

    Hi there! My name is Jessica. I am from Chicago, Illinois, USA. I have lived in Japan for over two years and am enjoying it thoroughly.
    I have had the pleasure of watching many children develop and learn new communication skills.
    My goal is to show children that communication is fun, and that when we try our best great things come from it. Children have such a wonderful ability to try their hardest at every task, while not being afraid of mistakes.
    Every child is different in the ways that they learn and absorb information. Finding the best way to help with each child’s individual needs is what is so rewarding about working with children from a young age.
    I hope to help the children of Aiwin to become confident in their own abilities and to grow into the globally successful people that I know they can be.

  • Khadidrah Lloyd

    Khadidrah Lloyd

    Head Teacher

    Bachelor of Science in Psychology, Master of Science in Marriage and Family Therapy Over 5 years of teaching experience Kindergarten, Primary School and childrent with special needs in America and Japan; Family Therapist for 3 years. She likes reading, swimming, playing video games, listening to music, traveling and crafting.

    Hello everyone! My name is Khadidrah, but you can call me Didrah. I’m from Connecticut in America, it’s very close to New York. I have been working with children over the past 10 years in a variety of settings: Summer camps, Special Education Schools, family therapy and teaching English here in Japan.Through my experience working with children of all cognitive levels, I have learned to cherish every step as they grow and look forward to helping them succeed.

    I enjoy teaching kindergarten students because they never fail to put a smile on my face and are eager to learn!My goal as Head Teacher is to provide the children of Aiwin with a quality international school experience and understanding of the world around them. I hope that you will be able to benefit from our international curriculum and learn with your children in Aiwin. Let’s have a great time this school year! I look forward to see you all everyday!

  • Michal Kostrej

    Michal Kostrej

    Head Teacher Preschool Homeroom Teacher

    Bachelor of Arts in Japanese Studies; over 4 years experience in teaching English to young learners; enjoys travelling, learning languages, exploring new cultures, snowboarding, hiking, playing the guitar, listening to music, reading and practicing Aikido.

    Hello, my name is Michal and it`s great to meet you. I am originally from the Czech Republic, but since I was 19 I have lived, worked and studied in English speaking countries such as Australia, USA, UK and Japan. 3 years ago I moved to Japan and started working as an English teacher for young learners and I thoroughly enjoy what I do.

    To see the kids developing, improving their English skills and being able to express themselves in a foreign language is a great thrill and a pleasure to watch. I strongly believe, that having a good command of at least one international language plays a vital role in our global society. I look forward to meeting all of you and I will do my best to give all of my students the opportunity to broaden their horizons through English learning while having a fun!

  • Saya Sugiura

    Saya Sugiura

    Office Coordinator

    Earned a Bachelor’s Degree in Linguistics and Literature; Gained Eiken Pre1 and Financial planner 3 certifications; like traveling, learning new languages, eating, Karaoke, watching movies, playing sports.


    Hello everyone! My name is Saya Sugiura. I studied in New Zealand for a year when I was 16 and I've learned how important it is to be able to communicate in different ways and how big the world is through different languages. I enjoy learning new things and meeting new people because it broadens my horizons. Please feel free to talk to me anytime. I look forward to seeing you all everyday and cannot wait to make unforgettable memories with all of you.

  • Misa Masuda

    Misa Masuda

    Accounting Supervisor

    Hello! My name is Misa Masuda and I am in charge of accounting. My hobbies are watching movies, karaoke, traveling and listening to music.

    Before coming to Aiwin, I worked in the medical industry for more than 5 years. I came to Aiwin because I wanted to try more things and was interested in international schools. I am very happy to work in an environment that is conducive to learning. And I am healed every day by the smiles of my beloved children.

    My basic work is back office work, so I may not have many opportunities to meet you all, but I would appreciate your help when I do. looking forward to seeing you all.

Faculty Teachers

  • Emmanuel Osei

    Emmanuel Osei

    Kindy Homeroom Teacher


  • Jazel Santos

    Jazel Santos

    Kindy Homeroom Teacher


  • Marta Canete

    Marta Canete

    Jr. Kindy Homeroom Teacher


  • Amila Endeno

    Amila Endeno

    Homeroom Teacher


  • Jermyn Sng

    Jermyn Sng

    Pre Leaning Support Tercher


  • Manami Sadasue

    Manami Sadasue



  • Gonzalo Razon Jr.

    Gonzalo Razon Jr.

    Nursery Homeroom Teacher


  • Emily Genery

    Nursery Homeroom Teacher


  • Zorayda Baylea

    Zorayda Baylea

    Nursery Homeroom Teacher


  • Shanon Pueblo

    Shanon Pueblo

    Early Nursery Homeroom teacher


  • Alice Akoth

    Alice Akoth

    Early Nursery Homeroom Teacher


  • Pamela Salgado

    Pamela Salgado

    Homeroom Support & Baby Class Teacher


  • Wayne Jinks

    Wayne Jinks

    Preschool Homeroom Teacher


  • Junko Tsujimoto

    Junko Tsujimoto

    Homeroom Support Teacher


  • Sayaka Taira

    Sayaka Taira

    Homeroom Support Teacher


  • Saori Tanaka

    Saori Tanaka

    Japanese Support Teacher


  • Chikami Masuoka

    Chikami Masuoka

    Homeroom Support


  • Samuel Goldfarb

    Samuel Goldfarb

    Homeroom Support


  • Mariko Kimura

    Mariko Kimura

    Japanese Homeroom Support


  • Ayaka Sakamoto

    Ayaka Sakamoto

    Japanese Homeroom Support


  • Maiko Tani

    Maiko Tani

    Japanese Homeroom Support


  • Miki Nishijima

    Miki Nishijima

    Japanese Homeroom Support


  • Mariko Sakata

    Mariko Sakata

    Japanese Homeroom Support


  • Kazue Kurasho

    Kazue Kurasho

    Japanese Homeroom Support


Specialist Teachers

  • Kana Ogawa

    Kana Ogawa

    P.E Teacher


  • Yuji Hashimoto

    Yuji Hashimoto

    P.E Teacher


  • Katsura Kojima

    Katsura Kojima

    Music Teacher