Hare, Tokidoki Suraimu.

If you suddenly start to see negative emotions in people?!

Nao is working as an assistant to become a wedding planner. Her temperamental and insecure personality comes out easily, and she is unable to stand on her own and is depressed every day. Then one day, she wakes up and sees a slime floating in the air! She realizes that the slime floating around town is apparently visible only to Nao, and that it seems to be created by people's anxiety and impatience. Then she meets Manaka and Mei, who can also see slime, and the three of them begin to plan how they will deal with the slime.

Will the day ever come when the heart of a negative girl who cannot become her ideal self will be cleared?