Moonlight Whispers (1999)
In Moonlight Whispers, the first film by Akihiko Shiota (Don't Look Back, Harmful Insect), a young Japanese student Hidaka Takuya (Kenji Mizuhashi) will do anything to prove his love for Kendo partner Kitihara Satsuki (Tsugumi). This includes licking the sweat off of her feet, listening to her having sex with a friend, and even jumping over a waterfall. Based on a manga (Japanese comic book) by Masahiko Kikumi, the film is not about kinky sex but about adolescents involved in a love so deep it completely distorts their sense of perspective.
akuya and Satsuki are shy students at the same high school and belong to the Kendo club (a sport involving two single combatants who wear padded gear, then try to beat each other with either end of a padded stick). Satsuki is a top player and a most sought-after companion. Backed by the soft guitar melodies of Shinsuke Honda, the two friends begin dating and everything seems normal until she discovers that he is more interested in sniffing her underwear, photographing articles of her clothing, and making audio tapes of her going to the bathroom than in having sex. When Takuya puts a twist on the meaning of "puppy love" and tells her he wants to be like her obedient dog, she calls him a pervert and begins spending more time with another classmate, Uematsu Tadashi (Kusano Kitahara).
With a fast turnaround that seems a bit out of character, Satsuki soon discovers that she finds pleasure in playing the dominating role and begins ordering the compliant Takuya around, asking him to do more and more outlandish things. The two feed off of each other, however, and continue a relationship of domination and submission with Takuya willing to go to degrading lengths to gain Satsuki's approval. (IMDB Howard Schumann)