ドイツにホームステイすることになりました。自己紹介をしたい。三人の息子の母です。外国人をお世話した経験はありますが、ステイするのはベトナムに次いで二度目です。趣味は合気道で、その練習風景をUチューブで見られます。そちらではドイツ語の勉強をしたい。よろしくお願いします。

Dear Mr. & Mrs. XXX,

This is Mrs.[your name].
I thank you very much for offering your home to me while I am　in Germany. I am looking forward to seeing you soon.

I have had many experiences of being a host parent for foreigners in Japan. However,  I have only one experience of staying somewhere overseas. Last year I stayed at a home in Vietnam. I enjoyed differences in food and lifestyle there. I look forward to learning about the lifestyle and the differences of culture in Germany.

I am a housewife with three sons, who are now all grown up and work in different companies. My husband is manager of a construction company. My hobby is Ai-ki-do and I practice two times a week.  Do you know what Ai-ki-do is? You can see a small clip of the practice on YouTube. Please type in "Aikido Matsusaka".

I've recently got a book to help teach me some German. It is very hard for me to study the language by myself. It is quite different from Japanese. I hope I will practice it with you and your family.

Please give my best regards to your family.
Looking forward to seeing you soon,

Sincerely,
[your name]