While researching a story on a school for problem children, Nakahara meets Emi, a college volunteer with a compelling tale of her own. After overcoming her initial reluctance to open up to the writer, Emi talks about her busted leg and her childhood friendship with the chronically ill Yuka.

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。

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.

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.

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