Masterpiece anime hentai style, highly detailed 2D illustration. Meru the succubus, young woman with red skin, small red devil horns, pointed ears, yellow eyes, black hair in a ponytail, sharp teeth, flushed cheeks, excited open-mouth smile. She is wearing a red hoodie, no pants, one leg raised high while a man in a black suit and red tie is holding her up and deeply penetrating her from behind inside a crowded train. Detailed penetration with fluids, other suited passengers in the background looking shocked or embarrassed. Clean line art, vibrant colors, smooth shading, erotic public atmosphere, best quality, intricate details, sharp lines