Yoko Matsuda (Miho Kanno), a 27 year old girl with a very bad personality, lives an unfortunate and unhappy life. Born unwanted, her father is unknown, and she has never received love from her mother. Because of this situation, Yoko grew up with a bad personality. She was mean and gloomy, and she'd have a fit if she didn't get what she wanted. One day, after being dumped by her boyfriend, Yoko gets sick of her unfortunate life. She goes to a bridge and jumps into the river... Yuji Kataoka (Koji Tamaki), a former detective, had been assigned to his new department. He lost his wife three years ago, and as a father of three, he chose to transfer to a department without overtime working so he can spend more time with his children. One day, while drinking with his co-workers Yusuke Yaginuma (Hiroki Narimiya) and Hideki Iizuka (Fumiyo Kohinata), a drenched girl came in barefoot. After drinking up a glass of beer, she fainted suddenly. Yuji took her to the hospital, and had then found out that she had tried to commit suicide. Waking up in the hospital, Yoko realized that she was unidentified. Thinking she might be able to live a different life, she pretended she lost her memory. Yuji, not wanting her to ever commit suicide again,decides to take care of her until her memory recovers. Taken to the Kataokas, Yoko sees love, laughter, and warmness filling the family. All of what Yoko had never experienced in her life. Although she hates children and dogs, she starts her new life with the Kataoka family. A heart-warming story about a lonely, unloved girl who suddenly starts a new life with a family full of love and happiness. A story that started form a lie turns into an unexpected ending...