对爱情有着依赖症的25岁女孩梅宫志乃(多部未华子 饰)此时正陷入恋爱困局,她的男友正树(柄本佑 饰)充满猜忌,为人刻薄,还时不时殴打女友。无以为继的恋爱,两人最终走向分手。在好友奈奈子(木村文乃 饰)和小天(松坂桃李 饰)的帮助下,志乃搬到一处新的公寓,展开全新生活。搬家当晚,志乃便被邻居菅原京志郎(绫野刚 饰)温暖的笑容所击中。可以想不到的是,对方居然就是她接下来将要打工的音像租赁店店长。前男友奚落轻蔑的样子时不时萦绕眼前,志乃不愿承认她就是对方所说的有男人就行的花痴女,但她还是不由自主被已经有女友的对方所吸引…… 本片根据少女漫画家乔治朝仓的同名漫画改编。Shino is the type of girl that is easy and available to men. She detests being alone. She cheats and moves on even to new regions. Shino meets her new neighbour Kyoshiro who just happens to be her boss. Of course, she desires him. The problem is Akari who lives with him.