"Hajimete no Dekigoto" (はじめての出来事, lit.
First Affair) is a song written by lyricist Yū Aku and composer Kōichi Morita, originally recorded and released by idol Junko Sakurada.
Released in December 1974, it became an Oricon number-one hit in February 1975,[1] grossing over 527,000 copies.
She performed this song at the 26th edition of Kohaku Uta Gassen in 1975.
[3] The song was included as a bonus track on the album "Spoon Ippai no Shiawase" (Spoonful of Happiness), the soundtrack to her first film.