Seishun Kajou Sisters

is a japanese 4-koma manga series written by Borupikka. It began serialisation in the October 2013 issue of Manga Time Kirara Miracle.

The series was released under 2 volumes from July 2014 to April 2015.

Synopsis
Nanakusa Kikyou, a girl with two illnesses in love. And all the other families of the Nanakusa family are sisters who are suffering from small two diseases, middle two diseases, large two diseases, and company two diseases ...? Can Kikyou's love be fulfilled with the support of other sisters !?

(Source: Bookwalker JP - Translated)