Amakawa Haruto, a twenty year old university student, loses his life when the bus he is on gets into an accident. As his consciousness begins to fade, his one regret is not telling his childhood friend, Miharu, how he felt. She'd disappeared after their high school entrance ceremony.
Now we move to the slums of the Kingdom of Beltrum. In a corner of a filthy shack, a boy named Rio moans and wakes from a nightmare. He has lived only to take revenge upon a certain man, but now, in his mind, suddenly there are flashes of another version of himself living in a world he's never seen before—the memories of Amakawa Haruto.
With the authority granted me as 
Vice Captain of the Knights of the Royal Guard,
،بالسلطة التي منحت لي كنائب لقائد فرسان الحرس الملكي
Als Vizekommandant der
Königlichen Wache habe ich
Je l’interroge comme il se doit,
en tant que vice-capitaine de la garde.
Un interrogatorio legale, 
condotto con l'autorità propria del mio rango
Com minha autoridade como vice-capitão
dos Cavaleiros da Guarda Real,
Я, как заместитель капитана 
королевской стражи,