This is a gag comic through and through, and while not on the level of Gintama or Saiki K (in my opinion) it's a funny read that passes the time.

Basically the main character, Kotaro Ietani, goes to high school and his whole family tags along. Even the cat. Each of their family members have a cliche to them (father is the one with the sad backstory and is really good at volleyball, sister is a 5 year old genius, etc.) and make for some interesting interactions with other classmates at the school.

In the midst of his oddball family, Kotaro wants to have a normal high school life, but it doesn't seem like he'll be getting that any time soon. The rest of the school has more or less gotten used to the 40 year old salaryman sitting in the back of their geometry classes though, so we'll see how this pans out.