Nega→Posi

is a japanese 4-koma manga series written by Morina Nao. It began serialisation in the December 2011 issue of Manga Time Kirara Carat.

The series was released under 2 volumes from January 2013 to November 2013.

Synopsis
Shy Ayano manages to lead a high school life in the same class with the sounds of the same dormitory room and Chisa. One day, the days of a negative girl suddenly approached her longing senior (female), and then began to change little by little. Negative? Positive? Such a loose dormitory life!