Primarism!

is a japanese 4-koma manga series written by Pulp Piroshi. It began serialisation in the June 2012 issue of Manga Time Kirara Carat.

The series was released under 2 volumes from August 2013 to October 2014.

Synopsis
Nico, a fifth grader in elementary school, has become the new leader of a group school attendance! I had a hard time going to school every day with my sister, Meifu and Sayura (3rd grade), and her sister Coco (1st grade), who were in the same class. Enjoy Nico's daily life, which is loved and swung by everyone ☆