One of the common themes is the search for identity. Since the crystal bloodline is something unique, the characters in these fanfictions often question who they are in relation to their newfound abilities. They might struggle with whether they are still part of the normal ninja community or if they are something entirely different. Also, there is often a theme of secrecy. Because the crystal bloodline can be so powerful and different, the characters may need to keep it a secret at first to avoid being targeted by enemies or even by those within their own village who might be jealous or afraid of their power.
Well, there's a fanfiction called 'Crystal Bloodline: A New Power in Konoha'. In this story, the character with the crystal bloodline faces many challenges in the village. They have to deal with both acceptance from some and suspicion from others. The story also shows how they train to master their special abilities, which are really cool and different from the regular ninja techniques in Naruto.
Well, it depends on the specific fanfic. But usually, there would be a character who has the crystal bloodline as one of the main characters. This character could be an original creation for the fanfic or a reimagined version of an existing Naruto character with the added crystal bloodline ability.
There might be a mentor figure, an older ninja who has some knowledge about the crystal release bloodline, even if they don't possess it themselves. They guide the young character in understanding and using their powers. For example, they might teach the protagonist how to shape the crystals into different forms like weapons or shields. Another common character could be an antagonist who covets the power of the crystal release bloodline and tries to either steal it from the protagonist or prevent them from fully realizing its potential.
In the fanfiction, the crystal release bloodline could be linked to a hidden realm made entirely of crystals. The main character, who has this bloodline, discovers a way to enter this realm and finds out that there are powerful crystal beasts there. They have to form an alliance with some of these beasts to gain enough power to defeat an evil force that is threatening the ninja world.
One interesting concept could be the unique abilities that come with the crystal bloodline. For example, the ability to create crystal structures for defense or attack. Maybe the characters with this bloodline can crystallize parts of their body for added protection in battle.
There are also fanfictions where a bloodline is created through some sort of experimental jutsu. For example, a bloodline that allows the user to transform into different elements at will. This would give the character an edge in combat as they could adapt to any situation by changing their form.
The knight bloodline could be integrated as a foreign power that was brought to the Naruto world long ago. Maybe a group of warriors from another dimension with the knight bloodline came and settled, and over time their bloodline got diluted but still resurfaces in certain individuals.
He might use some special jutsu or seals. For example, he could use a sealing technique to suppress the signs of his bloodline. This way, others wouldn't be able to detect it through normal means like sensing chakra.
It could also be part of a strategic move. By hiding his bloodline, he can surprise his opponents in battle. They would underestimate him based on not knowing about his true powers, and then he could turn the tables on them when the time is right. This gives him an edge in combat situations.