Both of which are by the same author. Go get those, because they are awesome.
This series started out pretty good. I loved volume 1 and couldn't wait to get my hands on volume 2, but once I got to volume 3, everything sped up and was going out of control. It was funny in the beginning, but near the end, it was just too cheesy. It kind of felt like Shizuru Seino had plans for this manga to go somewhere different than it ended up going, but her plans were cut short and she had to abruptly end the story.
I'll admit that the plot is very unique, but the characters are shallow, not typical of a manga. I usually expect to see super perfect, kind, naive, ultra pretty girls in mangas, but in this... All the main female character cared about were looks until maybe the last half of volume 3. I thought I was getting tired of super perfect girls, but I'd trade shallow for perfection any day.
I did enjoy it while it lasted, but it is definitely only average.