To keep using their school's abandoned observatory as a refuge, two sleepless high school students decide to revive the defunct astronomy club.

They are moody but sometimes they want to be pampered. They act aloof, but seem to be missing something. If someone is feeling down, they want to be there for them. This describes cats, but it describes many humans as well. Cats, good-looking guys and a shared house. With the whole world going crazy for cats, the TV drama that warmed the hearts of all cat lovers is now a movie!

When Chihaya Ayase was in the 6th grade of elementary school, she met Arata Wataya. Arata Wataya transferred from Fukui Prefecture. Taichi Mashima was Chihaya Ayase's friend since they were little. Arata got close to Chihaya and Taichi from the card game karuta. Four years later, Chihaya is a high school student. Chihaya learns that Arata, who went back to Fukui Prefecture, doesn't play karuta anymore. Believing they will meet Arata again, Chihaya and Taichi starts a karuta club at their high school.

After successfully won the Tokyo qualifying tournament, Chihaya and her friends are set to go on to the nationals. As they prepare, Chihaya is faced with new personal issues as her childhood friend and inspiration, Arata, has announced that he has quit competitive karuta. Not only that, but a new rival emerges in the reigning female champion karuta player, Shinobu Wakamiya, a karuta prodigy who became the nation's and the world's greatest female karuta player as a 9th grader. All of this forces Chihaya to reexamine her love of the game in the midst of preparing for one of the biggest tournaments of the year.

When Kanako, a model daughter and a brilliant student, disappears, her mother asks her ex-husband, a violent former policeman, to find her. As his investigation progresses, his idealized image of Kanako cracks: the girl hides a dark life that her father can not even imagine.

A quiet teen's life is shaken up when she's forced to be her arrogant neighbor's slave. He loves her, but they both have a lot to learn about trust.

Akari is a first grade high school student. She is positive, realistic and outgoing with romance. Akari though is not good at expressing her feelings. She become friends with Yuna, who attends the same high school.

Momoka Onigawara wants to have a fulfilling high school life without anyone finding out her embarrassing secret – her family are oni, with their horns popping out when they get flustered. She reunites with her former childhood friend Ren, who wants to make a movie to one-up his famous director father. After they find out that the script he seeks was originally written by Ren's father, Momoka's father, and Momoka's dead mother when they were high schoolers, they decide to live out their youth by making the movie.

In the spring of a new semester, a "ranking" is sent to Class 2-D. It clearly shows the rankings of all the students and the homeroom teacher. The one who ranks 1st is Himeyama Tsubaki, a kind and popular honor student recognized by everyone. But one day, without any warning, she commits suicide. A few days later, everyone in the class receives a suicide note from Himeyama, and from that day on, the class begins to fall apart.