Ok, so first off - let's start at the beginning. The protagonist of the story, Koshiro, is a twenty-something man who works as a wedding planner. Due to his parents divorce several years earlier, his own love life seems to be rather tragic. At the time of the divorce, it was decided that Nanoka (his younger sister) would live with their mother, while Koshiro stayed with their father. Up to the beginning of the anime, neither sibling had seen each other since the separation. Meanwhile, the problems start when said younger sister moves in with her father and brother to save time on commuting to school. One one such trips they meet when Nanoka drops her travel pass. During the course of the day they meet again. When their father shows up they discover themselves to be siblings, and things escalate from there.
The "psychological" tag for this anime is completely appropriate, because it really does play on your mind. The ides of incest will always remain a seriously taboo subject, but to see it happen in an anime is certainly an eye-opener. And seeing as this is my first anime which had this particular topic - it was even more of an eye-opener than usual. There's a lot of conflicting emotions also, Koshiro's need to protect his sister often clashes with his feelings of desire for her. This often causes his moods to fluctuate, something that initially confuses Nanoka. But then again, these are two people who have not seen each other in years - so, you can pretty much understand where this is coming from.
I can't really say if I loved or loathed this particular anime. I'm pretty much somewhere in the middle with this one, but at the same time I'm actually quite glad that I have watched it, and I may even progress to read the manga. If you're willing to try something different, then give Koi Kaze a try.
