So Young, So Bright (ジャンケン娘, Janken musume) (literally, "Rock, Paper and Scissors Girls") is a 1955 color (Eastmancolor) Japanese musical film, directed by Toshio Sugie. This is the first of the so-called "three girl" (sannin musume) series of films produced by Tōhō Studio, which involved teaming three popular young female stars of the period, employing a plot that portrayed their characters as best friends and recounted their romances and other adventures. This film was Toho's highest-grossing film of 1955.

Production design was made by Shinobu Muraki and the sound recordist was Masanobu Miyazaki.