In this type of fanfiction, Harry could develop a new sense of respect for his enemies. Meeting Lucius face - to - face might make him realize that even the most despicable characters have their own motives and insecurities. As for Lucius, he might be forced to re - evaluate his view of Harry. He may start to see Harry not just as a troublemaker, but as a real threat to his way of life. This could lead to him taking more extreme measures against Harry or, in a different turn, trying to co - opt Harry into his schemes.
Harry would likely start off as a rather arrogant character, given the Malfoy upbringing. He'd look down on those he considered beneath him, like muggle - borns. But as he experiences different things, he could start to question his family's beliefs. Maybe he meets a kind muggle - born witch or wizard who shows him that there's more to a person than their blood status. This could lead to a gradual change in his character, from a pure - blood supremacist to someone who believes in equality.
Harry might become more understanding of the Slytherin side. Lucius could start to question his loyalty to the Dark Lord. For example, Harry's influence could make Lucius see the harm in Voldemort's actions.
Harry might become more conflicted. He has to deal with his own moral compass while being in such an unthinkable relationship. Voldemort could potentially start to show a softer side as he is now in a relationship with Harry. Lucius might regain some of his lost honor as he is now part of this unique union.
Lucius may also have a moment of moral awakening. Despite his past actions, he could see the value in Harry's life and the good that he represents. Maybe he has a change of heart after seeing the destruction caused by Voldemort's actions and decides to do the right thing for once by saving Harry.
Kakashi could become more distrustful after meeting Tobi. Since Tobi is such a mysterious figure, Kakashi might start to suspect everyone around him more.
Keith could develop a stronger sense of self - confidence. Comparing himself to Sasuke, who is a highly skilled ninja, Keith may strive to improve himself even more. Sasuke could develop a sense of camaraderie that he has long lost. With Keith by his side, he might start to trust others again. In addition, they could both develop a more global perspective, understanding different worlds and ways of life through their interactions.
Itachi might start to question his loyalty to the Akatsuki after meeting Minato. Minato's strong sense of justice and love for his village could make Itachi re - evaluate his own actions.
For Goku, he could gain a deeper understanding of his heritage. Meeting Bardock would make him more aware of his Saiyan side. He might become more confident in his Saiyan abilities. For Bardock, seeing Goku all grown up and powerful could give him a sense of peace. He could realize that his sacrifice was worth it and be proud of the man his son has become.
One possible theme could be redemption. Lucius is often seen as a villain, and a relationship with Harry could be a path to his redemption. Another theme might be breaking boundaries, as they are from different sides in the wizarding world. Also, it could explore the idea of love conquering all, even the long - standing enmity between their families and groups.
One possible plotline could be a magical accident that causes Lucius to become pregnant. This could lead to him having to hide it from the other Death Eaters and the wizarding society in general, creating a lot of secrecy and tension. Another could be a spell gone wrong during some dark magic experiment. He would then have to deal with the physical and emotional changes while still trying to maintain his status in the wizarding world.