Hayashi Masataka

Shiho Murakami is a housewife who struggles to raise her 2-year-old daughter and complete her housework. She happens to meet and interact with various people such as a working mother, an elite bureaucrat, who all have similar problems related to housework.

Tsuda Rintaro is a high school student with the capacity to predict the lifespan of living things. However, he has struggled with his abilities since he was a child, and he can only gradually observe the people around him without being able to assist them. He discovers one day that Kanzaki Umi, his childhood buddy and the one who has feelings for him, has less than 100 days to live.