Nakajo plays the role of Midori, an university student who has nightmares every night but cannot recall the content by the time she wakes up. During a lecture, she learns that there are messages hidden in dreams and later draws the face of the man she sees in her dreams on a illustration software. After she uploads the picture to Twitter and asks for help to resolve the situation of seeing this man in her dreams, she gets an overwhelming response from netizens and the friends around her start to report seeing this man in their dreams as well.
Nakajo commented that as the theme of this story includes fear and mass panic, this is especially fitting in this era. Before she acted in this drama, she had heard about the urban legend as well and thinks that it could happen to anyone. Nowadays, news and rumours spread very easily through the Internet and social media so she hopes to be able to show how fear can spread in the same way through her acting.