It was published by Shogakukan from 1980 to 1984 in the biweekly manga magazine Shōnen Big Comic (precursor to the current Weekly Young Sunday).

To Masato's shock, the girl turns out to be his younger stepsister Miyuki (15), who has been living abroad with their father for the past six years.

The lead role of voicing Miyuki Wakamatsu was given to Yōko Oginome after she auditioned for Kitty Film's Shonben Rider.

Masatoshi Nagase, the voice actor for Masato Wakamatsu, is known for his passionate acting and his love scenes.

H2O's song "'Full of Memories" (想い出がいっぱい, Omoide ga Ippai) was a hit, reaching #6 on the Oricon charts.

The opening theme is "10% Chance of Rain" (10%の雨予報, Jū-pāsento no Ame Yohō) by H2O, with the lyrics of the chorus slightly altered from the original version to be more appropriate to the series.

A Spanish language dub of the anime series was made in Venezuela in 1992 and aired on Telecinco in Spain.

Sources:[2][4] The Miyuki anime television movie aired in the Fuji TV Nissei Family Special slot on September 16, 1983.