Serenity (comics) to the story being released in comicbook form. "Serenity: Those Left Behind" is a three-issue miniseries, created in 2005 as a tie-in to the film "Serenity". The series was written by Joss Whedon and Brett Matthews, illustrated by Will Conrad, lettered by Michael Heisler, and colored by Laura Martin. "Those Left Behind" is set after the events of the "Firefly" television series, to function as a bridge leading into the "Serenity" film. It shows Inara's departure from the "Serenity"’s crew, establishes Shepherd Book's intention to leave the ship, introduces several characters important to the film's storyline, including the Operative and
Satsu (Buffy the Vampire Slayer) on Earth. During this time, she is revealed to be working for the United States Armed Forces, and in a relationship with an undisclosed partner. Satsu was one of several original characters invented by series creator Joss Whedon for "Buffy the Vampire Slayer Season Eight", a comic book continuation of "Buffy the Vampire Slayer". Whedon described the concept for Satsu's relationship with Buffy as "evolv[ing] naturally" during the development of "Buffy the Vampire Slayer Season Eight". He viewed the story arc as "an opportunity for drama and character exploration" set up over the course of the comics, which had established