One possible consequence is that the character would lose control over what she says. This could put her in a vulnerable position. She may blurt out things that could be used against her by antagonists in the story. Also, it could damage her reputation as she might say things that are considered inappropriate or embarrassing. Moreover, it could change the whole dynamic of the story as other characters' reactions to her revelations would be significant.
If a character in fanfiction is injected with truth serum, she might end up revealing secrets she intended to keep. This could lead to a breakdown in relationships within the story. For example, if she had a hidden relationship or a secret plan, it would all be exposed, causing chaos and drama among the other characters.
There were a few novels that were related to the protagonist's injection of the serum. Among them,"Beauty Man: Starting from the injection of Captain America's serum" was a light novel/derivative Doujinshi novel, and the author was Little Lu Daoyao. In addition,"World Traverser in Marvel" was a light novel written by the master of Sky Swallowing Island, a derivative doujinshi novel. In addition, there was also a book called "A novel injected with super soldier serum", but the specific content and author were not mentioned. Due to the limited search results provided, there might be other related novels, but it was impossible to confirm.
One possible fanfiction could be where Hermione accidentally drinks the truth serum during a potions class experiment gone wrong. She starts revealing all sorts of secrets, like her true feelings about Ron and Harry, and also some hidden knowledge she has about Hogwarts' secrets. This could lead to a series of comical and yet somewhat tense situations as her friends try to keep her from saying too much.
Well, in the 'Harry Potter under truth serum' fanfiction, it's likely that we'd see a lot of confessions. Harry could potentially reveal his innermost fears about Voldemort and his own destiny. Teachers like Snape might spill the beans on their past relationships or grudges. It would be a great opportunity for the author to explore the unspoken thoughts and emotions of the characters in a very direct way.
In some 'Harry Potter truth serum fanfiction', there could be a plot where the truth serum is used by students to play pranks on each other at Hogwarts. But these pranks could quickly turn serious as secrets are spilled that were meant to be kept hidden. This could lead to a rift between friends until they figure out a way to fix the situation.
One possible consequence could be a shift in the power dynamics within the village he leaves. His departure might leave a void that could be filled by either positive or negative forces. Also, his friends would likely be deeply affected, feeling a sense of loss and perhaps even betrayal.
Probably Draco Malfoy. He's always been a bit of an enigma. With the truth serum, we'd get to know if his mean - spirited actions were all his own or if he was pressured by his family. He might also reveal any hidden admiration he has for the trio or any remorse for his actions throughout the series.
It's possible that Naruto would gain some of Tobirama's unique abilities. For example, Tobirama was able to create powerful water - based jutsu. Naruto might develop a new form of Rasengan that incorporates water elements or be able to use water - walking and other water - related skills without prior training. However, there could also be negative consequences. His body might reject the cells, leading to internal conflicts similar to what happened with some characters in the original series when they received foreign cells. This could make him ill or even temporarily lose his ability to use chakra.
One potential consequence could be enhanced physical abilities. Since Hashirama cells are known for their powerful life force in the Naruto universe, Naruto might gain greater strength, speed, and stamina. He could also potentially have an easier time mastering certain jutsus related to wood release or other abilities associated with Hashirama.
An interesting idea could be that Hermione is given the truth serum during a wizarding trial. She has to testify, and the truth serum forces her to reveal some long - held secrets about the Ministry of Magic's inner workings that they were trying to keep hidden. This would create a huge stir in the wizarding world and put Hermione in a dangerous position as she uncovers corruption.
Harry Potter himself is often a central character. The truth serum might be used on him, or he could be the one trying to find out the truth from others. Hermione Granger is also common, as her intelligence might be used to either create or counteract the effects of the truth serum.