Fuon Connect!

is a japanese 4-koma manga series written by Zara. It began serialisation in the March 2006 issue of Manga Time Kirara.

The series was released under 4 volumes from March 2007 to September 2010.

Synopsis
Mikashina Akeru and Michika are step sisters to the older Hanabusa Yu, but they are so close that they might as well be related by blood. Yu is a teacher at the school that both Akeru and Michika attend but is not very mature compared to her younger sisters. She is a procrastinator, lazy and childish while Akeru and Michika are very independent and capable high school girls. These polar opposite personalities live under the same roof but they somehow manage to have a fun family.

(Source: MU)