(Special Thing) Explaining some things

Heyo, so this isn't a chapter part of the story but a little thing to explain a system I'll be introducing for chapters as paths can branch.

Semi Vague: Chapter that can be accessed from several chapters, as long as a theme is shared (for example character is spanked)

Vague: Chapter that can be accessed from several chapters, and shouldn't have any direct mentions of particular details that are specific to options (for example a spanking position mentioned)

If a chapter doesn't clarify this it is currently or intended to only stem from a particular chapter.