Ok.. first off don't let the 'Mature' label keep you from watching this. That however doesn't mean its kid friendly either. Like a previous review said Teenagers and up are Ok to watch this.

I personally find the comedy in this one great! Nao is hilarious!! Yea its got the creepy brother sister romance thing going on, but after the 1st or 2nd episode (I can't remember now) you get a good explanation of their situation and that creepiness goes away (at least for me it did).

The main point I wanna make is don't let the mature label scare you. Its much more comedy than ecchi! (show less)

This is in no way for Mature viewers only at the most I'd say no one under 13 should watch it as it has no sexual acts of any kind after 7 episodes it does have ecchi aka fan service and as the person before me said it deals with one of those iffy subjects of brother and sister relations but that in no way requires a mature rating.

The crappy age grouping aside, I'd have to say that this anime follows basically the same plot as Kiss X Sis a sister not related by blood is attracted to her brother and makes a point to tease him on a daily basis, the dialog could have been better but I don't mind bad dialog if the story is good, like the person before me said everyone being tall and unrealistically slender is annoying but it in no way detracts from the over all enjoyment, and last but not least I find the series to be highly funny and entertaining.

If you not into animes like Kiss X Sis or animes with Ecchi/fan service then this anime is not for you but for those that like it or at the very least don't mind it give it a try. (show less)

This anime is a great one to watch if you are into ecchi.
Story is amazing but deals with one of those iffy topics of Brother Sister Love but dont worry, it really doesnt go into H-considered conditions and still provides good clean humor.
I highly recommend this to anyone and everyone.

One thing I find as a minor flaw is that I am not to fond of the animation style where everyone is seems extremely long and skinny BUT THIS DOES NOT TAKE AWAY FROM THE ANIME! In fact it is almost refreshing to see something different.

All in all give this anime a shot, maybe the first 1 or 2 episodes, if you like it you like it, if you dont, you dont. Not much more i can say than that. (show less)