There's also 'Mystic Eyes of the Hidden Leaf'. This fanfic delves deep into the lore of the mystic eyes within the Naruto world. It shows how different clans interact with the power of the mystic eyes and the political implications. It's a great read if you like in - depth world - building in fanfiction.
In a Naruto fanfic with Mystic Eyes of Death Perception, it could also be a story where Orochimaru is interested in these eyes. He might try to capture the person who has them to study and perhaps replicate the power. This could lead to a series of battles and chases, with Naruto and his allies trying to protect the person with the eyes from Orochimaru's clutches.
One type of fanfiction could be about an OC (original character) who discovers they have the Mystic Eyes of Death Perception. They might struggle to control this power at first, causing chaos in their normal life. For example, they could accidentally see the death lines on every object and person around them, which is both a gift and a curse as it isolates them from others who don't understand what they're seeing.
It's often related to the concept of seeing the 'death' of things. Usually, in such a visual novel, the main character with Mystic Eyes of Death Perception can perceive the weak points or the 'death' of objects or beings, which leads to all kinds of interesting stories, like battles, mysteries, and character development.
One more trope is the 'Power - Up' aspect. The character starts off with basic or weak mystic eyes abilities and then, through various events like battles or self - discovery, they gain more powerful abilities. This often leads to epic showdowns where the character uses their enhanced mystic eyes powers to defeat a powerful enemy.
It allows for character development. A character with Mystic Eyes in a fanfiction might have to struggle with controlling or understanding their power. This internal conflict can make the character more relatable and complex, like how in the original Highschool DxD, characters grow through their various challenges.
The main character, of course, is the one with the Mystic Eyes of Death Perception. There might also be an antagonist who is either envious of this power or wants to use it for their own evil purposes. Additionally, there could be friends or allies of the protagonist. For example, a childhood friend who stands by the protagonist's side and helps them in their journey with the special eyes. They might offer different perspectives and skills that complement the protagonist's power.
A possible plot is that the Mystic Eyes of Death Perception are a forbidden power in the Naruto world. A ninja discovers they have these eyes and tries to hide it. But as they grow stronger, they can't fully conceal the power. This attracts the attention of the Akatsuki. They think they can use this power for their own evil purposes. So, the ninja has to fight against the Akatsuki while also trying to come to terms with their own power.
You can start by looking on fanfiction websites like FanFiction.net or Archive of Our Own. They usually have a wide variety of Highschool DxD fanfictions, including those focusing on Mystic Eyes. Just use the search function and type in relevant keywords.
Well, I'm not sure of a specific 'Harry Potter has mystic eyes' fanfiction off the top of my head. But you can start by looking on fanfiction platforms like Archive of Our Own or FanFiction.net. Search for the exact phrase 'Harry Potter has mystic eyes' and you'll likely find a variety of stories. Some might explore how his mystic eyes are related to his connection with Voldemort, while others could show how they affect his relationships with his friends at Hogwarts.