A love between high school students Naoki (Kanta Sato) and Kotoko (Reina Visa). Naoki is handsome, good at sports and smart. Even though Kotoko is not very smart, she has a bright personality and strong will.
Etsuko Kono (Satomi Ishihara) is a 28-year-old woman who loves fashion. Aspiring to become a fashion editor, she joins a publishing company, but she is sent to work in copy editing section. There, her job is to correct errors and inadequate parts of documents and copies.
30-year-old Rinko Kamata (Yuriko Yoshitaka) works as an unpopular screenwriter. She doesn't have a boyfriend, but she has two female friends Kaori and Koyuki. They meet regularly at a bar. There, they complain about their situations and go through what if scenarios. One day, Rinko Kamata decides to go for happiness at love and work.
Mikuri Moriyama (Yui Aragaki) is 25 years old. She doesn't have a boyfriend and doesn't have a job even though she holds a graduate degree. Everyday, Mikuri Moriyama has a feeling that she is not needed. Her father, unable to see her suffering anymore, arranges for her to work as a housekeeper. Her employer is 36 year old Hiramasa Tsuzaki. He is single and works for a company. A series of events leads them to marry as a working condition.
Hundreds of years after Yoshihiko (Takayuki Yamada) saved the world from the God of Darkness Desutaku, the world changes into the dark age again. Yoshihiko and his group are revived by Buddha's power and travel all over the world. Can they save the world again?
Kie Hirano (Haruka Ayase) is an ordinary OL who often daydreams. Mitsumasa Kodai (Takumi Saito) at the same company as Kie Hirano, but he is an elite salaryman. He is the eldest son in the Kodai family and he is also telepathic. Mitsumasa Kodai got his special ability to read other people's mind from his British grandmother.
Mitsumasa becomes attracted to Kie's warm heart and her dreamy temperament. They begin to date and enjoy their days together, but Mitsumasa Kodai's mother calls.
Kinshiro Toyama (Hiroshi Tamaki) is the new chief at Kitamachi police station. He is enthusiastic to solve cases which interests him. He bickers over pretty much everything with veteran detective Yozo Minami (Masahiro Takashima). Minori Aikawa (Miori Takimoto) is a rookie detective who wants to become a veteran detective.
Botchan (Kazunari Ninomiya) has sense of strong justice and does not lie. He is offered a teaching job at a middle in a small village far away from his hometown of Tokyo. Botchan accepts the position and begins to work as a math teacher. The assistant principle there wields absolute power. Botchan has a hard time dealing with his fellow teachers and the students.
Hatori Matsuzaki (Mirei Kiritani) is a female high school student. She has a crush on her childhood friend Rita Terasaka (Kento Yamazaki) and believes he will eventually choose her as her heroine, but Rita Terasaka begins dating Miho Adachi. Meanwhile, the most popular male student, Kosuke Hiromitsu (Kentaro Sakaguchi) takes an interest in Hatori Matsuzaki.
When she was a middle school student, Futaba Yoshioka liked Kou Tanaka who was unlike the other boys and quite gentle. Kou Tanaka then moved away and they lost contact.
At the end of Futaba Yoshioka's first year as a high school student she meets Kou Tanaka again. Kou Tanaka’s name has changed to Kou Mabuchi and his personality seems different from his middle school days.