Daydream (白日夢, Hakujitsumu) is a 1981 Japanese pink film directed by Tetsuji Takechi.

[1] During the 1970s he concentrated on writing projects, and served as the host of a successful television series, The Tetsuji Takechi Hour for the previous decade.

[3] Noticing Kyōko Aizome in one of her nude photo magazine appearances, Takechi chose the then unknown actress to star in the film.

After the film's release, Aizome added to the controversy by admitting to having performed actual sexual intercourse on camera.

Though, as Japanese law required, sexual organs and pubic hair were fogged on screen, the Asahi Shimbun called it a breakthrough film as Japan's first hardcore pornographic movie,[4] and Aizome received national notoriety from starring in the film, thereby becoming Japan's first hardcore pornographic star.