Mistake

This story follows Nakata Yume, who caused a woman's death, and her encounter with the woman's daughter, Osako Mio. Two months ago, Yume tried to save a woman attempting suicide, but the woman fell from a building and died that night. The deceased's only daughter, Osako Mio, cannot accept her mother's suicide and falls into despair. One day, Yume and Mio meet by chance. Realizing that Mio is the daughter of the woman who fell to her death, Yume confronts the weight of her own mistake but cannot reveal the truth. However, Mio gradually opens up to Yume, and the strange friendship that blossoms between them continues to grow.