This is a kind of drama with quite more adult topics and talking a lot openly about sex, although not in any offensive way, just in a way I am not used to in other Japanese dramas, so I kind of liked the more realistic side of this.
The main story is a little bit strange if you think about it - what kind of girl would do such things with her roommate like Terada did? But still it works somehow and it caught my attention, so I kind of enjoyed watching the whole series.
I have to say I like the character of Terada, she's kind of genuine girl and we can see all her emotions very clearly, so I think this was a very good acting. But other characters are just trash I think. Hongyo is cold, abusive and so strange that it seems like he has a kind of psychotic disorder and to me he looked scary all the time, so I don't understand Terada's behavior towards him. Hase is the opposite, too flegmatic, always smiling, even though it seems like a strange kind of mask and acting his feelings all the time, his behavior was also abusive and egoistic and I didn't like him. Another crazy character is Akari. If I lived with her she would scare me all the time. Like all in all, I would leave this sharehouse immediately, as it seemed like a house of horror to me.
The plus for me were some steamy scenes and how I already said, good psychology in case of Terada.
It probably won't be my favorite jdrama but it's definitely worth watching (not again though). But be prepared to think how strange this is.