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Hatsumi Narita lives in a typical company housing complex with her seemingly typical family, but the dramatic turn her life is about to take is anything but, well, typical. Her precocious younger sister Akane is way too popular with boys, her childhood friend Azusa, now a hunky male model, might want to ruin her life, her super-mean and very privileged neighbor Ryoki considers her his slave, and her dreamy older brother Shinogu might not be what he seems at all. What is a hapless heroine to do?
"If we continue karuta, we'll definitely meet again." With that promise to the distant Arata in their hearts, Chihaya and Taichi enter middle school. Chihaya tries to find friends to play karuta with her, but her effort is fruitless. Taichi realises his limits at Kaimeisei Middle School, where only prodigies gather, and loses his fervour for karuta. The distance between Chihaya and Taichi slowly grows...
In the early days of mythology, the goddess Athena, with the support of her Saints, waged countless wars to protect love and justice in the world, and in one of these battles they faced fearsome adversaries known as Gigas, who followed to the god Typhon. At the end of that terrible war, Typhon and the Gigas were finally defeated and sealed under Mount Etna in Sicily. The Giants have returned with a single goal, to spread blood and death, making it known to their ancient enemy, Athena. These ancient beings wear a solid cloth called Adamas (which is usually as solid and hard as diamond itself) and to achieve their plans they first need to resurrect Typhon, their king. The Sicily Island is a place where one of the hundred sons of Mitsumasa Kido was sent to train years ago, destined like his stepbrothers to become a Saint. A young man was called Mei, who stayed longer than expected in his training place, and the cloth of Coma that he's wearing doesn't belong to any of the ranks of Athena's army (bronze, silver or gold).
Ikumi and Touma are strangers who are in the same high school class - but because they have the same family name, they quickly are dubbed "husband and wife" by their peers. Through this unlikely introduction, the two become friends. And over the next few years, their relationship continues to grow, thanks in part due to a shared secret between them.
After saying "I wanna go somewhere far away..." in front of Hakase, Yukko and friends are flung into the far reaches of space. They encounter a planet where anything you say becomes real, and enjoy themselves to their hearts' content. But at the same time, Tokisadame City is faced with a fearsome threat?!