There could be external factors such as social differences. If Zero Kiryu comes from a different social class or has a different cultural background, it could cause misunderstandings and difficulties in the relationship. People around them might also disapprove, which would put pressure on their love story.
Zero might be a very busy person, perhaps involved in some important tasks or duties. This could lead to a lack of time for the relationship. The reader may feel neglected as Zero is constantly occupied with other things, and they would need to find a balance between his responsibilities and their relationship.
One challenge could be Zero's past. If he has some dark secrets or a troubled history, it might make the reader hesitant at times. For example, if he has a history of pushing people away due to past betrayals, the reader would have to work hard to break through those barriers.
Zero Kiryu and the reader meet in an unexpected place, like a quiet library. Their eyes lock, and there's an instant spark. Zero is initially reserved but the reader's warm smile breaks his ice. They start sharing books and gradually fall in love over long conversations about their favorite stories.
A good 'Zero Kiryu x Reader' fanfiction often has well - developed characters. The writer should capture Zero's complex personality, his brooding nature, and his internal struggles, while also making the reader character relatable. For example, the reader could have their own insecurities that Zero helps them with, or vice versa.
One common theme is the 'forbidden love' aspect. Since Zero Kiryu often has a complex personality and backstory, the relationship with the reader can be portrayed as something that goes against the norms or rules within the story's universe.
Privacy would be a huge challenge. Jungkook is a global star, and his every move is watched. So, it would be difficult for them to have normal dates or private moments without being photographed or followed.
One challenge could be Hiei's past. He might have a lot of emotional baggage that could make it difficult for him to fully open up to the reader. Another issue could be his reputation. Others might not approve of the relationship, which could put pressure on them.
One challenge could be misunderstandings. Since Keith might be a complex character, the reader may misinterpret his actions or words. For example, if he's quiet for a while, the reader might think he's losing interest when in fact he's just thinking about something important.
One challenge could be the difference in their lifespans. The vampire is immortal while the reader is mortal, so they would have to face the inevitable separation. Another issue might be the vampire's natural instincts. Even if he loves the reader, he may have to fight his urge to feed on human blood.
One challenge could be Laxus's tough personality. He might have trouble expressing his emotions openly, which could lead to misunderstandings with the reader. For example, the reader might misinterpret his silence as disinterest when in fact he's just shy about showing his feelings.
The reader might face judgment from their own village or people. Kisame has a rather intimidating and feared reputation. People might not understand why the reader would be with someone like him, which could lead to the reader being ostracized. Also, Kisame's own past actions and the blood on his hands from his ninja duties could be a moral dilemma for the reader, making it hard for them to fully embrace the relationship.
One challenge could be Sasuke's past. His thirst for revenge might make it difficult for him to fully open up to Reader at first. He has been through a lot of pain and trauma, and it could take time for him to trust Reader completely.