在这部恋风剧情/爱情/动画片中,佐伯耕四郎（三宅健太 配音）有一个名叫小日向七夏（中村有岐 配音）的妹妹。因为幼年时兄妹两人的父母离婚，耕四郎和七夏就此分离，自此再也没有见过面。随着时间的推移，关于妹妹的回忆渐渐暗淡。
成年之后的耕四郎开始在婚姻介绍所上班，虽然做着牵红线的工作，但耕四郎自己的感情道路却并不顺畅。七夏考上了耕四郎所在的城市的高中，这也就意味着，耕四郎和七夏又要开始住在同一屋檐下的生活了。心里怀着喜悦、愧疚、担忧，怀着极其复杂的心情，耕四郎和七夏重逢了。家里突然多出了一个人，给耕四郎的生活带来了不少的麻烦，但随着时间的推移，耕四郎内心里对于七夏的感情复苏了。
After a 27 year old man has chance encounter with a fifteen year old girl, they discover that they are actually brother and sister. They were separated over a decade before due to their parents divorce, but now she is coming to move in with him and their father. Will they fight their desire for each other or give into incestuous desire?
要是女主能换个专业声优该多好……。这里怎么没有影评，窝来发一个。迎面吹来了一阵腐臭的《恋风》。
