The book cover features intricately detailed artwork in an anime or manga style

The book cover features intricately detailed artwork in an anime or manga style. On the left side, one twin girl with a neat, heroic face and long straight hair casts a shadow. Beside her, another girl, not her twin, stands slightly behind or peeks out from behind her with a contrasting expression, adding depth to the scene. Both girls flank the male protagonist in the center, who confidently stands as the mine owner. He has short, sharp-jawed features and is dressed stylishly, emphasizing his central role. In the vibrant background, a majestic castle enhances the festive atmosphere, heightening the dramatic tension between the characters

worst quality, low quality, bad anatomy, bad hands, bad body, missing fingers, extra digit, fewer digits