High‑school senior Tokidoki Rikugo doesn"t put much pressure on his life; after all, his name sounds like "somehow." A rich imagination keeps him from studying—after all, it"s far more interesting to fantasize than to cram. As a result, as punishment for his record‑low score on the history test, Toki must visit a virtual museum of the Edo period and write a detailed report. In the museum, Toki—entranced by the perfection of the computer simulation, scenery, and actors" performances—meets his fellow misfortune, Kon Simoné, a notorious school bully and troublemaker. Word for word—and before our hero can even wonder where the truancy friend knows so much about shogunate history from—Kon disappears, and a legendary beast called nue with a silver coat in an ommёdзи costume attacks Toki. The boy would have vanished if not for a girl with a sword who sprang out of nowhere. When Toki regains consciousness, it turns out he is really in Japan three hundred years ago, where Kon arrived two years before him. Only the Edo era is strange—monsters and wizards everywhere, and with his left eye damaged by the nue, something is off. Is it a dream, fantasy, parallel world, or "real Japanese history"? Who"s to blame and what should he do? Now Tokidoki must search for answers to these questions, remembering the true meaning of his name—"bird of time."