One common theme is identity. The boy has to figure out who he is when he's part monster. For example, in a werewolf transformation story, he's no longer just a normal boy but has to deal with this new identity.
A sense of isolation often exists in these stories. When a boy transforms into a monster, he may feel alone because he's different from everyone else. In many such stories, he has to overcome this isolation, either by finding others like him or by making the people around him understand that he's still the same person inside, despite his monstrous exterior.
Well, FanFiction.net is a good place to start. It has a large collection of Naruto - related fanfictions. Also, AO3 is known for its diverse range of fan works. Once you're on these sites, use the search function and type in the specific keywords 'Sakura has Sharingan'. However, make sure to read the tags and summaries to ensure it's the kind of story you're interested in.
I'm sorry, I don't know who the author of the '12 days in marienbad novel' is. There may be many relatively unknown novels out there, and this could be one of them.
One possible theme could be adventure. If 'fenglingtianxia' implies a vast world or realm, the characters might embark on an adventure through this world, like exploring new lands or seeking treasures. And if 'wangfei' is involved, there could be a theme of royalty or court intrigue. The wangfei might be involved in political struggles within the court.
Kid Flash fell in love with a girl he met during a city - wide crisis. She was a volunteer helping the injured. He was immediately drawn to her kindness. Every time he saved the city, he would look for her among the crowd. Eventually, he mustered the courage to talk to her, and they started a sweet relationship.
There could be many heartwarming stories. For example, a wife might organize a surprise party with the help of friends for her son's graduation. Friends could offer valuable advice to the wife on parenting the sons, or they could all go on a friendly camping trip together and create memories that strengthen their relationships.
The Rathalos is often considered a great monstie. It's a powerful and iconic monster in the Monster Hunter series. It has strong attacks and can be a great asset in battles, both in the air and on the ground.
Drizzt Do'Urden is extremely popular. He's a drow ranger with a strong sense of justice, which is quite different from the typical view of drow in the Forgotten Realms. Another popular one is Elminster, an incredibly powerful mage with a long and complex history.
Well, it depends on how you look at it. Fanfiction allows for a wide range of interpretations. But considering the canon relationships in Naruto, some purist fans would not be in favor of Naruto and Sakura making out in fanfiction. On the other hand, for those who like to experiment with different relationship ideas, it could be an interesting take. It also might depend on how well - written the fanfiction is and if it respects the overall essence of the Naruto world.
One idea could be that Lily discovers a hidden power within herself that has a connection to the Darkness. Maybe she can use this power to heal the rifts caused by the Darkness in their world. Another plot could involve a journey where Lily and a character representing the Darkness have to team up to defeat a greater evil that threatens both of their existences.
Friendship is a very common theme. They are often shown as supporting each other, like in many fanfictions where they stand by each other during battles or difficult situations in their village.