Give to the Heart Vol. 7 (manga)

Niroo forces Sooyi onward on their punishing journey to the Dead City. Once they reach their destination, Niroo plans to slay the Demon King Ganok once and for all. Then, he intends to take Ganok's place. Sooyi tries to escape the mad man, but Niroo lures Sooyi back into his web. He knows the true origins of Sooyi's lover Ganok. And he also knows the terrible price that must be paid to become a Demon King.