He first landed the lead role in Long Vacation in 1996. The series, which aired every Monday night, saw massive success and was the highest-rated program that year, thus becoming a social phenomenon. Media stated that, "women disappear from the city on Mondays", pointing out the large viewership and how intoxicating the show was for women in Japan. After Kimura playing a young Pianist, there was a rapid increase of young men who started taking piano lessons. The cultural impact and influences of the show is commonly referred to as the "Lonvaca (ron-bake) phenomenon". This was also a breakthrough for Kimura as an actor and helped him gain recognition and a more broad fan base. In 2000, he starred in a television series, Beautiful Life, which became a massive hit, with the final episode marking above the 40% household share rating and becoming the highest-rated program for that slot (Sunday 9:00pm). In 2001, Kimura starred in Hero, which became the all-time highest-rated television series in Japan and the only program in history to have all episodes mark above the 30% household share rating. Subsequent television series, such as Good Luck!!, Pride and Engine, also generated high-ratings. Five of his most successful television series, Hero (2001), Beautiful Life (2000), Love Generation (1997), Good Luck!! (2003), and Long Vacation (1996) are ranked in the top ten highest-rated television series in Japanese history.