Many fanfictions explore the theme of sacrifice. Either Sebastian sacrificing his demonic ways for Ciel or Ciel sacrificing his own goals or safety for Sebastian. There's also the theme of secret love, where they have to hide their feelings from others in the Kuroshitsuji universe. This adds an element of tension and secrecy to their relationship. And of course, there are the fluffy, domestic - themed fanfictions where they get to experience normal couple - like activities, which is a contrast to their often - dark and dangerous world in the original story.
A common theme is redemption through love. Since Sebastian is a demon, sometimes the fanfictions explore the idea that Ciel's love could redeem him or change his demonic nature. Also, the idea of soulmates is quite popular. Given their unique connection in the original series, many fanfictions play with the concept that they are meant to be together on a deeper, almost fated level. There are also fanfictions that focus on the development of their relationship over time, starting from their initial master - servant relationship and evolving into something more romantic.
Chapter 475, ", Let's First Get Past Mr. Gu", is the clearest early answer because it turns Alliance's situation into a concrete plot event. It opens with The atmosphere between Erso and Gu Hang suddenly fell silent after... and closes on They possessed their own mother planet, whose outputs all belonged to....
Chapter 175, "Arielle's Midway Interrogation", is the clearest early answer because it turns Damien's situation into a concrete plot event. It opens with As dawn broke over the horizon, Damien and Aquila descended... and closes on No way!" Damien, acting on instinct, sidestepped to the right just as....
Chapter 45, "Actively Hunting II", is the clearest early answer because it turns Tree Demons's situation into a concrete plot event. A useful checkpoint is the way the scene starts with As Fenrir sped through the forest, chased by dozens of Tree Demons,... and follows through with His bone sword went through, the whole of the weapon penetrating the....
Chapter 120, "A Wrong Decision II", is the clearest early answer because it turns Keith's situation into a concrete plot event. The chapter gives readers a real answer by opening on Keith and Narna struggled against the overwhelming pressure crushing... and ending on Keith spun around to face Narna, his frustration boiling over..
Chapter 171, "Cerbe's Transformation", is the clearest early answer because it turns Damien's situation into a concrete plot event. The chapter turns that into something concrete by moving from The cavern loomed before Damien, its cold, damp air carrying a faint... to A swirling energy enveloped the hound, growing brighter with each....
Chapter 485, ", Marshal Gu", is the clearest early answer because it turns Sun Zhou Domain's situation into a concrete plot event. A useful checkpoint is the way the scene starts with The Emperor began his rise to power here, unifying the entire world;... and follows through with This concerned matters equal to two to three hundred billion in....
Chapter 412, ", Heaven and Earth Collapse", is the clearest early answer because it turns Silver Pass's situation into a concrete plot event. It opens with After several hyperlane jumps, upon entering the Golden Pass Star... and closes on Some particularly important star systems, such as the Solar System.... The key payoff is that the chapter closes with However, for some unknown reason, the human fleet's observation systems did not alert them to the ambush.
Chapter 462, ", Only the Loser is the War Criminal, The Weak Resort to Treason", is the clearest early answer because the buildup finally cashes out in a real clash. A useful checkpoint is the way the scene starts with Kazimir Erso's so-called "encouragement" was not just a matter of... and follows through with About half a month ago, news came from Border Horse III that Javier....
Chapter 62, "Official Departure", is the clearest early answer because it pushes Osbourne into a new phase or setting. The setup is Lord Ashbourne dressed with a refined elegance that spoke of both..., but the pressure keeps building through He wore a finely tailored tunic of deep indigo, its fabric woven from....
Chapter 113, "The Orchid Quest III", is the clearest early answer because it turns Universal Space's situation into a concrete plot event. A useful checkpoint is the way the scene starts with Damien crouched low behind the dense thicket, his eyes fixed on the... and follows through with For now, Damien allowed himself a moment to rest, "We'll continue....