After an outburst at school involving her son, a concerned single mother demands answers, triggering a sequence of deepening suspicion and turmoil.

In a small Tokyo apartment, twelve-year-old Akira must care for his younger siblings after their mother leaves them and shows no sign of returning.

Tokunaga, a comedian who is down on his luck, has a shock encounter with Kamiya, an older comedian when he visits a fireworks event in Atami on a job. Tokunaga is deeply touched by Kamiya and asks if he can become his apprentice. Kamiya is a genius type of comedian who is full of human kindness. He accepts Tokunaga’s proposition on the condition that he will write his biography.

2018 年，导演山户结希策划了一个电影项目，也即是将来自多位同龄女性导演的作品集结起来，形成一部以自我意识和性为主题的完整集合。各位导演需要提供一部短片，之后这些短片反映的主题会被集结成一部混搭风格的电影，其主要目的是为了证明 21 世纪的女性是大胆、多元、富有创造力的，而且她们不会刻意回避这一点。
制作完成时，《21 世纪女子》由 14 部电影短片和结尾处的一部动画短片组成，这些短片均由 80 后或 90 后年轻女导演创作。这部影片大胆探索了关于人际关系、自我意识、性、爱、欲望等敏感话题，充分表现了幕后创作者们的大胆创新精神。