Okusama wa 18-sai
is a Japanese manga by Miyoko Motomura. It was published in Shueisha's Weekly Margaret from August 1969 to August 1970. It was adapted into television dramas in 1970 and 2011; there was also a film adaptation in 1971. Synopsis 
At American college Sweet Pea Gakuen, a young teacher, Ricky Nelson, and a female student, Linda Nelson, live a school life while hiding their marriage. Media

Manga 
Written by Miyoko Motomura, it was published in Shueisha's Weekly Margaret from August 1969 to August 1970. Television series

1970 
A television adaptation starring Yuki Okazaki as Asuka Takagi and Tetsuo Ishidate as Tetsuya Takagi aired from September 29, 1970, to September 28, 1971. 2011 
A remake version starring Takanori Nishikawa and Natsuna Watanabe was broadcast from March 27, 2011. In this version, Hokushin Gakuen, where Tetsuya works as a temporary teacher, merges with the girls' high school Asuka attends due to financial reasons caused by the declining birth rate. Film 
Following the success of the 1970 television series, a film adaptation was made in 1971. Due to financial difficulties faced by Daiei Film, Toho took over production. Thus, other than the main characters, the staff and cast were changed. References

1970 Japanese television series debuts
2011 Japanese television series debuts
2011 Japanese television series endings
Anime and manga set in the United States
Japanese television dramas based on manga
1969 manga
Shōjo manga