I’ve decided that instead of writing two reviews for both series I am going to talk about both in this review, with the most focus on the Katsu!! sequel, as it is the better of the two, though only marginally. Now before you fanboys out there who loved this show get all worked up I have a couple comments to make before I get to the meat of my opinions. This show is pretty much pure echii, and I don’t mind echii, that’s not the reason this show is getting low marks. If the only thing you want is to see cute girls in various states of undress then this is probably your show but I think if you really looked at yourself honestly you too would admit this show is very ordinary and below average.
The story is pretty simple and uncomplicated. Spirits appear which forces a girl to take her clothes off or either have them taken off for her or ripped off... rinse... repeat next episode with a different girl. It’s still pretty funny in a lot of places and I did laugh a bit, but it gets boring after a while. The first season sets up a lot of things that happen in the 2nd series. And the plot does get more detailed and interesting however it fails to live up to what you expected in the end. I don’t want to give away and details on it but let’s just say it feels like it’s going to be this big ending and it turns out to be kind of a dud. Of course for me the big peeve is the relationship between Ikkou and Chitose. It’s pretty much implied that they like each other, more on Chitose's side as she pines for him and gets jealous almost the entire series but as usual in these kind of series we are left without any resolution in the end and things are pretty much exactly the same as they were in the beginning.
The characters are simplistic and boring. They follow the standard stereotypes and pretty much add nothing of interest to distinguish them from any other series out there. Your pretty much assured to find a girl in the group you like whether its moe, tsunderes, lolis, or manly types. Ikkou is your standard wussy useless male nosebleeder. The cast is fairly small which is one thing the show has working for it; it allows you plenty of screen time with the important characters. The development is small for all of them, all the girls have episodes involving them and explaining their special power and mastering their power however the ending arc doesn’t really make much use of this. Ikkou gets a little better at not being such a pervert and not awakening every time he sees a boob but again like the girls and their powers this doesn’t seem like it makes much difference in the end either.
Animation and music wise this series is pretty strong. I love the character designs, the girls are all very adorable and well drawn and... healthy looking. Ikkou despite being a wimp at least looks like a man. The acting is good and the girls all have voices that match their personalities. All the music is great and it’s very catchy.