Newbie designer Nazuna has been feeling exhausted from work every day and she's now troubled by her lack of sleep because it's making it harder for her to work better.

Then one day, Nazuna lost her keys and her neighbour, Seiji, let her spend the night at his place. For some reason the next morning, Nazuna found that not only did both her heart and body feel refreshed, she was also able to sleep well when sleeping next to him. Plus, she's even starting to have really sweet dreams unlike any she's had before! This is a healing in-bed love story between a girl with insomnia and the boy who sleep nexts to her!