Another obstacle could be the post - war situation in the wizarding world. If the story is set after the battle against Voldemort, there could be a lot of animosity towards Draco's family for their past actions. Snape's daughter might face criticism for being with Draco, and they would have to deal with the prejudices of the wizarding community.
One major obstacle would be Snape himself. As her father, he might be very protective and not trust Draco easily. Snape has seen Draco's family's loyalty to the Dark Lord in the past, and he would be worried about his daughter getting involved with someone from that background.
The social divide within Slytherin could be an issue. Draco is part of the pure - blood elite in Slytherin, and Snape's daughter, while also pure - blood, might not have the same level of wealth and social standing as Draco's family. There could be whispers and gossip from other Slytherins, which could put pressure on their relationship.
One way it could start is at Hogwarts. Snape's daughter, perhaps named something like Lyra, could be sorted into Slytherin like Draco. Draco, being the prideful Slytherin, might initially be dismissive of her, but as he sees her inherit her father's intelligence and skill in potions, he becomes intrigued. Their love story could begin with a shared love for academic excellence in the dark arts and potions.
One obstacle could be the difference in their generations. Since Kushina is Naruto's mother in the original story, society might not accept their relationship easily. People in the village might be shocked and oppose it.
One obstacle could be their different personalities. Sasuke is often aloof and focused on his own goals, while Hinata is more shy and family - oriented. It might be hard for them to understand each other's priorities at first.
One possibility could be that Snape's secret daughter, let's call her Lily (for the sake of this story), has been hidden away all her life. Draco, being from a prominent pure - blood family, initially has doubts about her. But as they interact more, he realizes she has a kind heart and a sharp mind, much like her father. They might end up forming an unlikely friendship, which then develops into something more as they face the challenges of the wizarding world together, such as dealing with the remnants of Voldemort's followers.
Dumbledore could be an important character too. He might be aware of Snape's daughter's existence and see the potential in her relationship with Draco. He could be the one guiding them, or at least observing from afar, making sure their relationship doesn't cause any major disruptions in the wizarding world.
One challenge is dealing with their different personalities. Harry is brave and headstrong, while Draco is proud and used to privilege. Snape has to find a way to discipline them without causing resentment. Another challenge is the expectations of the wizarding community. People have certain views of Harry as the 'Chosen One' and Draco as a Malfoy. Snape has to protect them from those outside pressures.
One major obstacle could be their different villages. Naruto is from Konoha and Kurotsuchi is from Iwagakure. Their loyalty to their respective villages might create tension. For example, if there were a conflict between the two villages, they would be on opposite sides. Another obstacle could be their different personalities. Naruto is very outgoing and sometimes impulsive, while Kurotsuchi is more reserved and practical. This could lead to misunderstandings in their relationship.
Draco would probably be very protective. Given his own experiences at Hogwarts and in the wizarding world, he wouldn't want Lyra to get into any dangerous situations. He might be strict in teaching her about the pure - blood values that he grew up with, but also show a soft side when it comes to her personal interests and dreams.
A potential plot could be that Draco is tasked with finding Snape's secret daughter for some unknown reason. When he does, he's surprised by her resemblance to Snape in terms of her intelligence and determination. They begin to work together to solve a mystery related to Snape's past, which gradually builds a bond between them.
Well, it could be about the daughter of Snape secretly having feelings for Draco Malfoy. Maybe she's been in the shadows all this time, and when she meets Draco, there's an instant attraction. Their relationship might develop against the backdrop of the wizarding world's politics and power struggles.