Koyomi Hidaka and Shiori Sato meet at his father’s research center and begin to fall in love, but so do their parents, who eventually marry. To avoid becoming stepsiblings, they decide to run away to a parallel universe. Traveling between dimensions is common in their world, but not without repercussions. Does a universe exist for the young couple, and what will it cost them to find it?
While struggling to make friends after his parents’ divorce, Koyomi Takasaki meets Kazune Takigawa, but apparently, they already have. Kazune reveals that she’s from World Line 85, an alternate universe in which she and Koyomi are lovers. But in a reality where moving between dimensions is natural, could Koyomi be the one from another world?
Shizuka, a college student, is recruited by a group named the "Japan Salvation Conference" for a mission. She and her pals leave their astral bodies and head for the spirit world to face the Great Demon of Hades that aims to destroy Japan.
A former boxing gym owner and his younger brother rise up to help a boy and his teacher's daughter from a vicious religious group that preys on good people.
Heita Tomishima is a very conscientious but awkward young man at a mid-sized construction company. He loves working on-site, but one day is suddenly transferred to Operations, a unit whose work is totally outside his comfort zone. Its remit is to land major projects, including public works, and in-house it's cynically known as the Bid Rigging Department. Working under a crusty-old director, a crass macho type, a go-getter doyenne, and a cunning manager adept at hiding his true intentions, Heita dedicates himself to winning a public works contract worth billions.
Morita Kazuhiro is an ordinary bank employee whose wife left him to live with her parents. After one year of living apart he ends up being put in charge of a new client, a troublesome old woman. While following that woman's advice, he tries his best to make his family whole again.
Kei Maneki works as a model. He has bad luck with murder cases taking place when he works. Kei Maneki becomes an important witness in these murder cases. To clear his name, Kei Maneki and his model friends Itsuki Suo and Toma Shimon attempt to solve the murder cases.
College student Kahoko is the quintessential overprotected child born out of today's Japanese society. Shielded by her parents, Kahoko grew up completely pampered and became somewhat of a miraculously naive "test tube human." She is 21 years old and about to start working for a company, but she has never slept away from home, had a part time job, chosen her own clothes, or even ridden a train alone. Kahoko has had her picture taken, but she has never taken a picture herself. Now, Kahoko is about to step out of her germ-free isolation pod and into the germ-infested world. It won't be long until she realizes, "I'm different from everybody else!" She has been her mother's best friend all her life and her father can't live without her. As they become emotionally unstable from the changes that Kahoko goes through, their family begins to fall apart. That's when Kahoko herself and the people around her begin to see the strength that hides deep within.