This was one of the stranger manga that I've read. It never really went anywhere. There was no greater purpose. It was reasonably humorous but overall fell flat.

Story: 6
Seigi no Mikata follows the story of a girl who has been bullied and overshadowed by her unreasonably prickly and lucky sister. Said sister was always a model student, went to a good university, and holds a good job. However, she tends to do cruel things for her own amusement or betterment. Such things have a habit of having a positive effect on those receiving her ire, or those who were in the area at the time, which causes the sister to receive endless gifts and commendations. While funny at first, eventually this gets old, because really, who can be THAT mean and have THAT many good things come of it? Notice how I mentioned the main character and then totally disregarded her? So too does the manga. Her role is to constantly screech about how terrible her sister is, go on about her own boy troubles, and attempts to prove that she's not as stupid or awkward as her sister claims she is.

Art: 6
The art is in a 90s style, which isn't terrible, but it isn't great either. I, personally, am not a great fan of the 90s style, especially when used in more modern works. Others might feel differently about the art. This is totally subjective.

Character: 6
Honestly, I didn't really like any of the characters. They were very flat and had no growth. Who they were at the beginning is who they were at the end. The only redeeming people were the sister, who was funny at times, and her husband, who was nowhere near as annoying as the main, and DID try to adjust to living with his monster of a wife.

Enjoyment: 6
While occasionally funny, nothing really happened. Years passed and the lives moved, but nothing happened. SO little happens that I typed out examples of what happened, and then deleted them and typed this because I felt guilt about potentially ruining people's hopes about this manga by spoiling EXACTLY how little happens.

Overall:
I don't REGRET reading this manga, it wasn't a total waste of time, and I wouldn't go out of my way to tell someone NOT to read this, but I also wouldn't look at someone eying this and encourage them to read it