Hatsukoi Limited (初恋限定。, Hatsukoi Rimiteddo?, lit. First Love Limited) is a Japanese shōnen romantic comedy manga by Mizuki Kawashita. It was serialized by Shueisha in the manga magazine Weekly Shonen Jump from October 2007 to May 2008 and collected in four bound volumes. Adaptations as an anime and a series of drama CDs were announced in September 2008, and are currently in production. The series depicts vignettes in the love lives of eight girls in middle school and high school.

Source: Wikipedia