Well, a possible plot twist might be that Kagome's near - death situation is actually a setup by a greater power to test Touga. Or, perhaps when Touga is about to save Kagome, he discovers that she has some hidden power that she has to activate herself in order to be fully saved, and he has to figure out how to make her do that. There could also be a plot twist where the danger that Kagome is in is just an illusion created by an enemy to lure Touga into a trap.
A plot twist in this fanfiction could be that Touga saves Kagome, but in doing so, he accidentally transfers some of his own dark past or a curse onto her. So, instead of a simple rescue, it leads to a whole new set of problems. Another twist could be that the entity that was supposed to kill Kagome is actually a long - lost relative of Touga's, and he has to make a difficult decision between saving Kagome and sparing his relative. Also, it could be that when Touga saves Kagome, he finds out that she is the key to unlocking a great power, and now they both become targets because of it.
One plot twist could be that Touga is actually in league with the ones who put Kagome in danger at first, but then has a change of heart. Another could be that the method to save Kagome is something completely unexpected, like it requires a sacrifice from Touga that he wasn't aware of when he started the rescue.
I haven't read that specific fanfiction, so I can't summarize it directly. But generally, in such a story, Touga might use his strength, knowledge or some special powers to rescue Kagome from a life - threatening situation. Maybe she's in danger from a powerful demon or some other perilous circumstances.
Well, a plot twist might be that Naruto actually gets captured by the Akatsuki while trying to save Gaara. Then, Gaara, in his weakened state, has to find a way to save Naruto instead. This would completely change the dynamic of the story. Or, it could be that the Akatsuki's real target isn't Gaara at all, but Naruto, and they use Gaara as bait. So when Naruto arrives to save Gaara, he walks right into their trap, but then uses his wits and new jutsu to turn the tables on the Akatsuki.
One possible plot twist could be that Sasuke has been under a genjutsu that makes him target Sakura, and Naruto has to break the genjutsu first to truly save her. Maybe the one who cast the genjutsu is a new, powerful enemy who wants to disrupt the bond between Team 7. Naruto, with his strong will and newfound powers, manages to find the source of the genjutsu and free Sasuke from its control, thus saving Sakura from harm.
One possible plot twist could be that Snape saves Harry in a very public way, which shocks everyone in Hogwarts. Maybe Umbridge was about to use an illegal and extremely harmful spell on Harry during a public 'interrogation' session, and Snape steps in at the last moment, revealing some long - hidden information about Umbridge's true nature that even Dumbledore wasn't fully aware of.
Perhaps Draco saves Hermione in a very public and unexpected way. This could lead to a huge scandal in the wizarding world. Lucius might be shamed and lose a lot of his influence among the Death Eaters. Draco, on the other hand, might find himself an outcast among his own family and former friends. Hermione, feeling indebted to Draco, might try to protect him from the backlash, which could further develop their relationship in an interesting way. It could also be that Draco's act of saving Hermione is part of a prophecy that neither of them knew about. This could add a layer of mystery and destiny to their story.
Often, love and loyalty are common themes. The story might revolve around how they fall in love despite their differences. Also, the theme of sacrifice can be present. For example, one of them might have to sacrifice something from their own world or way of life to be with the other. There can also be themes related to family acceptance, as their relationship may face challenges from their respective families or groups.
One idea could be to explore the emotional turmoil Kagome experiences. She might be conflicted between her feelings for Inuyasha and this unexpected situation with Touga. The story could focus on how she copes with the pregnancy in a world full of demons and magic, and how the other characters react to this news.
Well, it depends on what you consider 'good'. There are definitely fanfictions out there about Kagome and Touga. Some might focus on a romantic aspect, while others could be more about a platonic bond. Try searching on popular fanfic platforms and read the reviews to find ones that suit your taste.
One plot twist could be that the princess is actually a spy. She was planted to be 'captured' so that Naruto would come to save her and lead the rescuers into a trap. But Naruto, being observant, notices some small details that give her away and he has to turn against her to save himself and his comrades.
One possible plot twist could be that Konan discovers a hidden power within Naruto that even he doesn't know about. Maybe it's a connection to an ancient and forgotten jutsu. This could change the whole dynamic of their relationship and the way she saves him. For example, she might have to protect him not just from physical harm but also from those who would want to use this power for evil.