故事发生在八九十年代的军区大院里。主人公是一个男孩，他成长到一定阶段对自己的性别认知产生了障碍，出现“认为自己是个女孩”的倾向，而他生活的环境却是一个雄性文化相当旺盛的地方。故事讲述他怎样在姐姐的推动下面对个人性别取向问题。

The story takes place in China's military district in the 1980s and 1990s. The main character is a boy who has grown up to a certain stage and has a tendency to "think of himself as a girl”. But the environment he lives is a place where the male culture is very strong. The story tells how he faced the issue of personal sexual orientation with his sister's push.