Tokimeki Memorial, a famous dating sim game
made by Konami. It has some of cutest anime girls ever and the best
part is… you get to date them. However, screw it up and you will end
up with nothing. Note that Tokimeki is not categorized under the "Hentai"
section. An intriguing game indeed, especially when Konami decides to
add Dance Dance Revolution to it. In Tokimeki Memorial 2 Substories
- Dancing Summer Vacation, it's disco meets love, this game is
bounded to be popular.
There is an OAV anime named Tokimeki Memorial too. It focus mainly on one of the girl, Shoiri I believe.