On a rainy evening, 19-year-old university student Fumi Saeki happens to meet 9-year-old Sarasa Kanai in the park. Kanai Sarasa is soaking wet. She is separated from her parents and lives with her aunt, but she tells Saeki Fumi that she doesn’t want to go back to her aunt. Saeki Fumi takes Kanai Sarasa to his apartment and they live together for the next 2 months. Saeki Fumi is then arrested for kidnapping. He is labeled as a dangerous kidnapper and Kanai Sarasa is labeled as a poor victim. 15 years later, Kanai Sarasa and Saeki Fumi happen to meet each other.

Aoi Nishimori and Shusei Kugayama are in love and they begin to live together secretly. Suddenly, Shusei’s cousin Reon Kugayama comes to them. Their secret is discovered by Reon. Now, Aoi, Shusei and Reon begin to live together.

Erika Shinohara (Fumi Nikaido) is a first year of high school student. While talking to friends, she makes up a story about her “boyfriend.” In reality, Erika Shinohara doesn’t have a boyfriend. Erika’s friends soon begin to doubt her story and Erika is also running out of lies. Erika then sees a pretty boy on the street and takes his picture discreetly. She later shows his picture to her friends as her boyfriend. The boy in the picture is Kyouya Sata (Kento Yamazaki) and happens to attend the same school as Erika. She tells Kyouya about her situation and asks him to be her pretend boyfriend. Even though Kyouya has a pretty appearance, he has a dark side.