Chocolate Kiss is a dating sim visual novel game featuring a high school student as a protagonist. The game's story starts in January, and this year, he is determined to find a girlfriend that will give him a chocolate for Valentine's Day, however he has only one month time to achieve that goal. The game's story advances through the days, and allows the player to go to different locations. Depending where he goes he will run into a different girl, all of which are potential candidates for becoming his girlfriend.

You are a high school student that begins the game on the 15th of January. You want a girlfriend that can give you chocolate on Valentine's Day and have one month to complete your mission. There are 9 different girls to date: Marie, Sachi, Saeko, Yayoi, Miko, Anju, Natsuki, Yuka & Kira.