The Japanese drama version of Itazura na Kiss aired in 1996. It has only 9 episodes, and the plot deviates somewhat from the original manga.
I think the most important deviation is the infamous kiss… Rather than meeting in a rejection, Aihara Kotoko (Sato Aiko) and Irie Naoki (Kashiwabara Takashi) meet lip-to-lip when Kotoko runs face-first into the hero in the school hallway. This puts a whole new spin on the “it started with a kiss” concept.
Face-first meeting in the hallway.