Male protagonist: Gu Siheng, 28 years old, CEO of the upstart technology company "Xinghan Technology". On the surface, he is a flawless business legend, but privately he suffers from severe insomnia and emotional apathy. He was unable to sleep deeply for nearly ten years until he met the heroine.
Female protagonist: Lin Youyou, 23 years old, graduated with a major in botany. She was forced to change careers due to the cold winter in the industry, and unexpectedly became Gu Siheng's junior assistant. Born with a calming physique and the fragrance of grass and trees, it is the only "sedative" that Gu Siheng has used to fall asleep naturally in the past ten years.
