My stepsisters are sexy demons, and I must protect them

Hakuto's life changes forever when his father Shin— a man with highly questionable morals—marries Kagura Kurotsuki, the CEO of a multinational company, and they move into her luxurious mansion. There, he meets the alluring daughters of his new stepmother: the seductive Yuzu—who doesn't hesitate to tease both her new stepbrother and her stepfather in ways that are... rather bold—and Rika, more introverted and irritable, yet just as sensual. But nothing is truly as it seems... Kagura is a succubus, but Rika and Yuzu are different. They were born from a demon and a vampire—something that shouldn’t be exsiste. Because of that, demons, vampires, even humans want them. But Hakuto won’t allow it. He’ll never let anyone hurt his beloved stepsisters.