Shunpei Ashibe (36 years old), an official from Yokohama City's Administrative and Legal Affairs Division, is a hard-boiled young man who brings a different woman into his room every night and persuades him by showing him the night view. However, he has a daughter, Yukino, who is only 16 years old and is in the second year of junior high school. Yukino's mother, Suzuka, couldn't endure a difficult birth and passed away soon after giving birth. In order not to hurt Yukino, whom he believes will continue to love her mother, Shunpei vowed to protect her ideal father image, but...!?