About Katerina English School (KES)

■ What does the company do? When is it needed?

In a nutshell, Katerina English School (KES) is a community-based English conversation school offering lessons for all ages — from babies to adults — taught entirely by foreign instructors. Based in Yamaguchi Prefecture, the school is led by its owner-instructor Katerina-sensei, who holds degrees from a national education university (linguistics) and a graduate school of international culture, and brings extensive teaching experience across nurseries, elementary schools, and cram schools.

👉 Real-world applications and use cases

English education for children (ages 0–12) — The "Baby & Mama" class invites parents and infants to enjoy English songs and stories together. Curriculum for toddlers through elementary students is carefully tailored to each developmental stage, creating a love of English rather than a fear of it.
Junior/senior high school students — Lessons aligned with school curricula, university entrance exam prep, study abroad preparation, and TOEIC training are all available, customized to each student's goals.
Business professionals and adult learners — From complete beginners to advanced business English and TOEIC prep, adult learners study at their own pace.

💡 Did you know? KES's diverse instructor roster includes professionals with experience at Harvard University and international patent law firms — bringing real-world global perspectives into every lesson. The school also hosts tea parties, cooking events, and homestay programs to make international exchange a fun, lived experience.

■ Office Locations

Location: Yamaguchi Prefecture