À travers Irène

Six thousand years before Sora and Shiro were even a blink in the history of Disboard, war consumed the land, tearing apart the heavens, destroying stars, and even threatening to wipe out the human race. Amid the chaos and destruction, a young man named Riku leads humanity toward the tomorrow his heart believes in. One day, in the ruins of an Elf city, he meets Schwi, a female exiled "Ex Machina" android who asks him to teach her what it means to have a human heart.

The story of an unruly class of bright, funny history students at a Yorkshire grammar school in pursuit of an undergraduate place at Oxford or Cambridge. Bounced between their maverick English master, a young and shrewd teacher hired to up their test scores, a grossly out-numbered history teacher, and a headmaster obsessed with results, the boys attempt to pass.

A story very loosely based the 480 B.C. Battle of Thermopylae, where the King of Sparta led his army against the advancing Persians.

In the center of the story are three main characters - Lieutenant Colonel Soshnikov, Captain Muravyov and Major Zakharov. Three ages, three different characters, three different destinies, which are destined to meet at the Khmeimim military base.