A man standing on a rock in front of a lake with a castle in the background

background：Background uses a deep night sky，Dotted with stars and shooting stars，Symbolizes the vastness and mystery of the otherworldly continent。Under the night sky，You can vaguely see a winding Styx，The river water is blue，It emits a faint glow，Add a touch of weirdness and fantasy to the cover。 Persona：On one side of the pattern，You can draw the protagonist of the novel - a young man wearing the clothes of a civil servant in the underworld（Lin Yi）。He held a sword that shone with cold light.，The gaze is firmly looking ahead，As if to meet the upcoming challenges。Persona should be designed to be eye-catching and attractive enough，So that readers can recognize this as the protagonist of the novel at a glance。 Color matching：The overall color is dark blue、Black and gold predominant，create a mystery、A solemn yet magical atmosphere。Dark blue represents the night sky and the River Styx，Black represents the gloom and mystery of the underworld，Gold represents the protagonist's courage and determination。 Other Elements：Around the cover or in the corners，You can add some decorative elements，Like clouds、flame、runes, etc，To increase the layering and visual effects of the cover。These elements should be coordinated with the overall design style，Don't be too flashy or obtrusive。

nsfw, (worst quality:2), (low quality:2), (normal quality:2), lowres, watermark