Hiatari Ryōkō!

is a Japanese high-school romance manga by Mitsuru Adachi. It was published by Shogakukan in 1979–1981 in the magazine Shōjo Comic and collected in five tankōbon volumes. It was later adapted into a live-action television drama series, an anime television series, and an anime film sequel to the television series.

Plot
The story focuses on the relationships of high school girl, Kasumi Kishimoto. When she enters Myōjō High School, she moves into her aunt's boarding house with four other high school boy tenants. Despite her steadfast determination to stay loyal to her boyfriend studying abroad, Kasumi finds herself slowly falling in love with one of the boarders, Yūsaku Takasugi.