Japanese teacher Kosukeこうすけ✅Genki✅Biz

Kosukeこうすけ✅Genki✅Biz

Smart Lesson
Professional Teacher
Teaches
Japanese
Native
Speaks
English
Specialties
Business
I provide structured lessons! Speaking, biz, JLPT and Genki textbook. 16yrs biz, 6yrs teaching exp.
From JapanLiving in Other, Australia (04:37 UTC+10:00)
About Me
italki teacher since Jun 15, 2021
InterestsFashion & BeautySports & FitnessFoodBusiness & FinanceHistory
Hello, I’m Kosuke. I have 16 years of business experience and 6 years teaching Japanese. I offer structured textbook lessons for beginners and discussion-based classes for advanced learners. I also specialize in business Japanese, interview lessons. Living in Australia and raising bilingual children, I teach authentic, non-textbook expressions and nuance. Lessons are available in Japanese or English; I help learners speak confidently with native speakers. New students and intensive courses welcome! こうすけです。企業での実務経験16年、日本語講師歴6年。初級から中級は『げんき』等で体系的に文法を指導し、上級はディスカッションで会話力を伸ばします。ビジネス日本語、面接、海外赴任対策も専門です。オーストラリア在住でバイリンガル子育て中で、教科書にない自然な表現やニュアンスを伝えます。授業は日本語・英語どちらも可能。ネイティブと自信を持って話せるよう指導します。新入生・集中講座歓迎! 私は日本語教師の資格を持ち、日本とオーストラリアで15年以上ビジネス経験を積んできました。国際会議や海外出張を含む実務経験を活かし、敬語やビジネス日本語、面接対策を指導します。さらに、海外でバイリンガル子育てをしながら生活してきた自身の経験から、教科書では学べない自然な会話表現やニュアンスを伝えることを得意としています。帰国子女や日本人のパートナーを持つ方に対しても、サポートし、より自然で実践的に指導します。授業は日本語と英語の両方で行うことが可能です。 I am a qualified Japanese teacher with over 15 years of corporate business experience in Japan and Australia. I teach keigo (polite language), business Japanese, and interview preparation. With experience raising bilingual children abroad, I help learners acquire authentic expressions not found in textbooks. I also support returnees and those with Japanese partners in understanding subtle nuances of the language. Lessons are offered in both English and Japanese. 新入生、集中講座大歓迎です! New students, intensive courses, and last‑minute lesson reservations are all very welco...
My teaching material
  • PDF file
  • Text Documents
  • Presentation slides/PPT
  • Audio files
  • Image files
  • Video files
  • Flashcards
  • Articles and news
  • Quizzes
  • Test templates and examples
  • Graphs and charts
  • Homework Assignments
5.0
Rating
620
Students
4805
Lessons
100%
Attendance rate
100%
Response rate

Japanese Lessons

Trial Lesson
336 lessons completed
USD 21.00+
1. 日常会話 コース 【✅Speaking Practice, ✅Phrases for travelling, Relocating to Japan】※vocabulary, grammar, colloquial expressions
A1 -  C2

Conversation

1,775 lessons completed
USD 28.00+
Package with 10% off
2. Textbook course: ✅Genki 1,2, ✅中級日本語、中級へ行こう, ✅Minnano Nihongo, ✅上級へのとびら N5/N4/N3
A1 -  B2

Language Essentials

1,332 lessons completed
USD 28.00+
Package with 10% off
3. 面接対策コース【job interview】【至急対応可能/丁寧に教えます/日本語の細かい修正よりも話す内容の確認が重点です】 就職・転職/入学試験/自己分析/職務経歴書等サポート/面接ノウハウ・テクニック/AIが教えてくれないあなただけの回答を一緒に準備しましょう!
B2 -  C2

Business

206 lessons completed
USD 47.00+
Package with 20% off
4. ビジネス日本語【敬語/ビジネスマナー/メール・電話応対/ビジネス日本語/ネイティブ校正/プレゼンテーション ※面接の練習ではありません
B2 -  C2

Business

772 lessons completed
USD 28.00+
Package with 10% off
5. Tutoring course ※ For test preparation (JLPT ,high school, university etc) and homework
A1 -  C1

Language Essentials

364 lessons completed
USD 28.00+
Package with 10% off

Availability

231 Reviews

Jeff Standard
49 Japanese lessons
Teacher’s pick
This past month was my 6th month under Kosuke's tutoring. I can see and feel great progress. 2 things I've noticed in particular are that my conversation speed is picking up and I'm becoming aware of many nuances to Japanese I previously had no idea about. Kosuke continues to both push and pull me forward. He does a great job identify and drilling weak points and setting the right learning speed that works for my ability and schedule. I really appreciate his lectures that highlight importance nuances. I can tell he's not just teaching, but also personally fascinated by language differences. Thanks for helping me level up!
Apr 21, 2026
Jeff Standard
49 Japanese lessons
Teacher’s pick
I really enjoy instructor Kosuke's style. He's patient, gives very clear explanations, and understands both English and Japanese at a deep level. I've noticed a big improvement in my grammar and feel more confident to speak to others in Japanese.
Dec 4, 2025
RYUSEIRIN
20 Japanese lessons
なるべく、まず言いたいことを自分の考えで言わせてもらってから、間違いや不自然なところを一つ一つ直してもらって、役立つと思います。
Apr 14, 2026
Student Alessandro
Alessandro
54 Japanese lessons
Teacher’s pick
Kosuke-sensei is a patient and knowledgeable teacher. I have been studying with him for the past three months, and I plan to continue our lessons for the foreseeable future. His classes are extremely interactive, which was a very important factor for me. He is also exceptionally well-organized; this was something that immediately impressed me, as many teachers on iTalki are not as structured. Lastly, Kosuke-sensei identified the specific areas I needed to focus on and has demonstrated an ability to customize his classes to suit a student's individual needs.
Apr 10, 2026
RYUSEIRIN
20 Japanese lessons
会話力を伸ばすための練習方法を教えていただきました。 レッスンでは、私の趣味に関する話題を通して、たくさんの単語を教えていただいて、助かりました。
Apr 19, 2026
Eli
1 Japanese lesson
I booked a lesson with Kosuke to prepare for a job interview. Kosuke is a straightforward, honest teacher and I can tell he has a lot of valuable professional experience. I was a bit blindsided during my lesson, however, because I was told to fix grammatical mistakes in my interview script with AI, which I was not expecting or informed of prior to the lesson. It was surprising especially as there were many reviews from students highlighting his patience in correcting their Japanese. For potential students who would like to book an interview course, I suggest making sure your script is as polished as possible so you can maximize your practice time.
Apr 7, 2026