Under the Dog

The year is 2025. Five years have passed since the Tokyo Olympic Games were called off after deadly terrorist attacks. An international school run by the United Nations now stands in the former Olympic site on the edge of Tokyo Bay. Seven teenagers with special abilities, known as "Flowers," are among the students. Their student identities are only a cover for their real identities as members of an intelligence organization run by the UN. Their objective is to assassinate other teenagers who have the same abilities. The Flowers have no choice but to complete their missions without fail. Their organization has taken their family members hostage to ensure this. For the Flowers, failure would mean death not only for themselves but also for their loved ones. This is the story of their struggle against cruel fate, and of how it is human nature to find hope, however bleak the outlook. (Source: Official site)In an alternate timeline, Japan was divided after losing World War II: Hokkaido was annexed by "Union" while Honshu and other southern islands were under US sovereignty. A gigantic yet mysterious tower was constructed at Hokkaido and could be seen clearly from Aomori (the northernmost prefecture of Honshu) across Tsugaru Strait. In the summer of 1996, three 9th-graders had made a promise that one day they'll build an aircraft and unravel the tower's mystery, but their project was abandoned after the girl, Sayuri Sawatari, began experiencing sleeping sickness and transferred to Tokyo for better treatment. Three years later, Hiroki Fujisawa accidentally found out that Sayuri had been in a coma since then, and he asked Takuya Shirakawa to help him finding a way to revive her. What they don't know yet is that Sayuri's unconsciousness is somehow linked with secrets of the tower and the world.