The romantic and touching love story begins when Sato Aya, an average office lady, accidentally runs into Ichijo Kei, heir to the household commodity brand Manrei-do. Ichijo Kei is always distant, but he’s like Prince Charming in front of Sato Aya despite his relationship with another woman. Sato Aya is too kind to take their relationship to the next level and only wishes him happiness at a distance. However, their first encounter has already brought a new life to this world. The unexpected pregnancy will trigger off a journey of joy, hope, hesitation as well as unbearable pain.