Welcome to Pia Carrot!!

Welcome to Pia Carrot (Pia♥キャロットへようこそ!!, pia♥kyarotto e yōkoso) is a Japanese visual novel series by Cocktail Soft (a part of F&C, later F&C FC02). Anime and manga have been based on the games.

Plot
High schoolers Sayaka Takai and Akihiko Kannazuki work together at a restaurant chain "Pia Carrot." Both are interested in each other, but before either could make a move Sayaka was temporarily rotated to the newly established branch at a beach resort. While waitress girls at this new location did their best to confront harassment, make new friends, and attract new customers by attending a beauty contest, Sayaka's feeling for Akihiko never stops and has become stronger and stronger.