I need 2nd season as the last episode piqued my curiosity. The concept was normal, similar to that of time travel. The story didn't had much to offer but it was funny definitely. Ecchi and nudity was normal too and was not able to sexually arouse the viewer. Only thing that gave it 7 rating was the comic theme of this story. Creativity was there and to come up with such a concept, the story writer must be really naughty, I must say. The concept of concubines and that of multiple wives was appalling at first, but funny as soon as the anime progressed. Watch itas it will lighten your mood.