: Themes of making deals with supernatural beings to gain power over others.

: Complex, often explicit interactions with multiple female characters as the protagonist navigates his new-found status. Chapter 28 Context

: A significant development in the primary romantic or sexual relationship occurs.

The specific chapter you mentioned likely refers to (also known as Night King or The King at Night ), a manhwa/manga often hosted on platforms like Hentaizone. Series Overview

The story generally follows a protagonist who gains a unique, often supernatural, ability or position related to the "night." In many adult-oriented series with this title, the plot revolves around:

: The main character masters a new aspect of his "King of the Night" abilities to overcome a specific antagonist or hurdle.

: A nickname used during a specific acting arc for the character Ren Tsuruga.

If you are looking for a different series, "King of the Night" is also a common title/alias in other popular works: