Balsa (Haruka Ayase) is a 30-year-old female bodyguard-for-hire. Her life changes when she saves Imperial Prince Chagumu who is being carried away by a raging river. They then attempt to return the great egg of the water spirit, which is in Prince Chagumu's possession to its source in the sea. Along the way, they are hunted by hired assassins.
Sakurako Ban (Mana Ashida) is a 12-years-old girl and the second child among 4 siblings. Since her mother passed away 6 months ago, she has taken care of house chores alone. Her father, Sota meets American woman Alice Shepherd (Charlotte Kate Fox) in the United States. Alice Shepherd aspires to become a photographer, but currently works part-time. Sota and Alice Shepherd decide to marry on on the spot. Sota takes Alice to Japan and introduces her to his children as their new mother. Sakurako Ban becomes angry and tries to kick her new mother out.
Natsumi Uemura (Erika Toda) is an English teacher at Meiryo High School. She has always dreamed of being a teacher. Until her middle school days Natsumi lived in the U.S. She is now a first grade home room teacher and advisor to the basketball team. She is bright and has a positive character, so she is popular with the students. Shuji Kashiwagi (Haruma Miura) is a biology teacher at the same high school. Shuji is a 2nd grade home room teacher. Shuji is faithful and considerate. He deals with students with his heart so not only students but also their parents support him completely.
Natsumi and Shuji graduated from the same high school and university. They plan to marry in 3 months. Natsumi's friend and roommate, wedding planner Sayaka Todo (Mariko Shinoda), helps the couple with their wedding plans. All signs point to Natsumi and Shuji being happy.
On the first morning of the new school term, Shuji finds a naked woman sleeping next to him. Shuji thinks back to the prior night and recalls becoming drunk and having sex with the woman. He becomes embarrassed, but gives the unidentified woman a key and leaves for work. Shuji feels guilty to Natsumi and regrets what he did, but tries to calm down and prepare for the new school term.
Students in the 2 grade 1 class like Shuji as their home room teacher. When Shuji calls roll he discovers two students, Hikari Saeki (Emi Takei) and Nozomi Sonoda (Ayame Gouriki) have not yet come to school. At that time, one female student walks into the class room. The girl is Hikari. Shuji tells the students to move to the auditorium for the opening ceremony of the new school term. Hikari stays in the classroom until the rest of the students clear out. Hikari gives something to Shuji. The item is Shuji's apartment key. Shuji realizes the woman he spent with last night is Hikari...
Madoka Tsutsumi (Sota Fukushi) is a university student. He rarely expresses his feelings and he has never done an impulsive act in his life. One night, he sees an old man and a pink rabbit struggling physically. The pink rabbit seems surprised and asks Madoka if he can see them. The pink rabbit then introduces itself as the Angel of Death and says the old man is a ghost who died yesterday.
Madoka, who begins to see things that he isn't supposed to see, gets involved with the Angel of Death Nabeshima and Angel of Death colleague Yuzuko. Madoka works to solve dead people's regrets and let them go in peace. With senior Sachi Aguma (Tao Tsuchiya), Madoka lets the spirits of dead people posses his body and solve their regrets.
Reiji (Satoshi Ono) is young CEO of a first-class hotel. He is single and 34-years-old. Even though he has a good appearance and wealth, women eventually leave him because of his personality. He is generous with himself, but strict with others. For the first time, Reiji falls in love with someone. Her name is Misaki (Haru). Hoping to gain her love, he begins to change.
Kohei Kamishiro (Masaharu Fukuyama) worked as a musician in his past. He only had one hit song and his recording contract was eventually cancelled. He became devastated and left the field of music.
Twenty years later, Kohei Kamishiro keeps his distance from music, but his passion for music hasn't faded away. He leads a boring life. Due to his past experience, he finds it difficult to have a relationship with women. One day, a woman appears in front of him. She has a complex and because of this leads a solitary life. The woman though has an amazing singing voice. By meeting her, Kohei begins to think he wants to make music again.
Kokoro Kurosawa (Haru Kuroki) used to be a contender for the Olympic Judo Team, but she now begins work at weekly manga magazine "Baibusu." She learns about editing from senior editor Kei Iokibe (Joe Odagiri). She becomes fascinated with the edition world including talking with manga writers, discovering new manga writers and efforts to reprint manga books.
The publishing industry is going through a turbulent time due to ebooks. Members of the editorial department struggle to come up with ways to sell more manga books.
Yuka Shima (Mayu Matsuoka) works as an OL at a large general trading company. Suddenly, she is transferred from her office to an aquarium that is affiliated with her company. She now works as a keeper at the aquarium and her senior is Kaji (Kenta Kiritani). Yuka Shima struggles with her new job and marine animals, but with her bright personality she is able to grow as an aquarium keeper.
Ayumu Ichinose (Yuto Nakajima) began to play Go from an early age. He focused only on Go and dreamed of becoming a professional Go player, but he repeatedly failed tests to turn pro. He is now 22-years-old. This is now his last chance to turn pro, because of the age limit of under 23-years-old. The day before his test, his mother collapses from overwork and is hospitalized. Ayumu fails again.
Ayumu is dejected that he can't become a pro Go player and spends his days as a part-time worker. His heartbroken mother asks acquaintances to make Ayumu take the last step step of an employment test at a general trading company. The last step is a one month internship at the general trading company. Aware of his mother's heartbroken feelings, Ayumu begins to work as an intern there. He quickly becomes known around the office as an intern that doesn't know anything and unable to even make simple document copies. Nevertheless, Ayumu decides to not give up and become an employee at the company.
Takanashi Chiwa is an office lady who works part-time at a club because she is in debt. One day, she gets into a quarrel with a wealthy and handsome customer who came to the club and is fired. The next day, a depressed Chiwa is summoned by her boss and finds the rude man from the day before down there. This man’s name is Mamiya Hokuto. Hokuto suddenly proposes a contract marriage with Chiwa. Although Chiwa is initially resistant to the idea, she has no choice but to accept. The two of them overcome all sorts of troubles to become a real couple.