Summary
Born with black hair and black eyes, Yano is treated as a monster in his father’s manor. Starved, beaten, and hidden away, he summons a succubus and offers his soul for the one thing he has never known: love. Astalie laughs at his wish. Yet the proud demon keeps returning to his attic. Desperate to see the world beyond his prison, Yano bargains for ten days of her company. Freedom proves precious, and human cruelty follows him into the sunlight. As his bargain draws to its end, one reckless choice may bind them—or destroy everything.