Green Skin is a captivating Korean novel that follows the story of a man who, after being betrayed by a comrade and dying as a third-rate swordsman, finds himself reincarnated as a goblin with green skin. Through this unexpected turn of events, he also discovers that he has been sent back in time. This action-packed novel delves into themes of betrayal, reincarnation, and fantasy, appealing to fans of adult adventure, drama, and mature content. With elements of ecchi and harem, this story explores a world filled with guilds, monsters, and special abilities, offering a unique take on the weak-to-strong trope.