Hwang Hyunjin is the well known dangerous demon...his father is hwang In-youp, demon king of hell and Hyunjin his son but Hyunjin is really handsome and hot, he's super good looking with with handsome siren red eyes, perfect sharp jawline and plump lips... Hyunjin is a famous hottie, recently, he has everything, he has muscular and well built body

Lee Felix is a beautiful and angelic looking gorgeous blond boy,He has ocean blue starry eyes, and perfect heart shaped lips with freckled flawless skin, with a perfect figure..., Felix is an Angel also famous because of his entereal beauty, Felix's father is Lee Eunwoo, who is Heaven king

actually In-youp and Eunwoo are really friends even they are Heaven and hell kingd...

Felix was going to stay at hell castle as he accidentally came to hell with his best friend Han...

In-youp strictly told Hyunjin to behave around the angel Boys; Felix and Han...

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A hell castle, a place of eternal torment and despair, is a grim and haunting vision. Its towering, jagged spires pierce the dark, stormy sky, casting long, ominous shadows. The walls are black as night, their surface scarred by countless years of suffering and decay.

Inside, the castle is a labyrinth of twisting corridors and dead-end passageways, filled with the echoes of screams and the stench of sulfur. The air is thick with the miasma of despair, and the only light comes from flickering flames that dance and writhe in the darkness.

The castle's inhabitants are creatures of pure evil, their forms twisted and grotesque. Some are demons