There's no light without darkness

One morning, Joph, a half-angel, half-human being, wakes up in an unexpected place, the royal palace of his enemy, the Tenebrians: half-demon, half-human being, whom, his country- Lumbris, has been at war with for years. There he has to find a way to return home, while his childhood memories linger as he questions his hatred for the people he once considered friends.