A large number of Japanese go to an Eikaiwa school (pronouced ay−kai−wa where "ay" rhymes with "may" and "kai" rhymes with "sky"). Eikaiwa means English Conversation which I believe is slightly less serious than a full on English school class.

Anyway, I was on the subway this morning and I saw this ad for a woman's magazine.

It says "ninki kaigai dorama [Sex and the City] de manabu, beddo de tsukaeru eikaiwa" which means in English:

"Learn English conversation used in bed from the popular overseas drama [Sex and the City]" 😃