Perhaps they would try to find a way to defeat Voldemort from the shadows. Harry has his connection to Voldemort through his scar, which could potentially be used as an advantage. Ginny, with her experience in fighting Death Eaters, could help Harry strategize. They could also look for ancient magic or powerful artifacts that might turn the tide against Voldemort, all while staying on the run and avoiding detection.
One possibility is that they'd try to find other resistance fighters. They could use their skills, like Harry's Patronus, to send out signals to those who oppose Voldemort. However, they'd face many challenges. Their resources would be limited. They might have to rely on the kindness of strangers or their own wits to get food and shelter. And they'd always be in danger of being betrayed.
They could use disillusionment charms constantly to blend in with their surroundings. This would make it difficult for Voldemort's forces to spot them. Also, they might use the Marauder's Map if they manage to get hold of it. It would help them avoid any approaching Death Eaters or other threats.
In many WBWL fanfictions where Harry is powerful, he often uses his hidden powers to resist Voldemort's regime. For example, he might have an extraordinary control over magic that was suppressed in the original story. He could use this power to secretly help the resistance, like teaching other wizards and witches how to fight against the dark arts in new and unexpected ways.
One possible plot could be that they run away to escape some dark magic threat that Voldemort's remaining followers are planning. They might go into hiding in a remote wizarding village, where they have to learn to fend for themselves without the help of the Order of the Phoenix. Along the way, they could discover new magical abilities or ancient spells that help them in their fight against the dark forces.
In this fanfiction concept, the plot could involve Harry being disowned and then being found by Death Eaters at a young age. They could try to indoctrinate him into Voldemort's ways. However, Harry's inner goodness resists. He could start a journey of self - discovery where he realizes that his parents' disownment was a part of a larger plan to keep him away from Voldemort's immediate attention. Along the way, he might find allies who knew his parents and help him understand the truth.
One great 'Cold Harry Potter WBWL' fanfiction is 'The Boy Who Lived Again'. It shows a darker and more complex wizarding world under Voldemort's rule. Harry has to hide his true identity and find a way to fight back.
There are also some fanfics that explore the psychological aspect of Harry having abusive parents in a WBWL world. For example, 'The Shattered Soul of Harry Potter'. It shows how Harry's self - esteem and view of the world are affected. His relationships with other characters are also very different from the original series. He becomes more distrustful at first but gradually learns to open up as the story progresses.
Well, one possible plot could be that they run away to escape some sort of dark threat at Hogwarts. Maybe a new dark wizard has emerged and they feel that the school is no longer safe. So, they secretly gather some supplies, use magic to disguise their departure, and head off to a remote location like a hidden wizarding village in the mountains. There they try to find a way to fight the threat from afar while also exploring their relationship in a more private setting.
Well, they might have a really awkward encounter. Ginny could be shocked by the Dursleys' rudeness towards Harry. And Harry would probably be super tense, trying to keep Ginny from getting too involved in the Dursleys' mean - spirited remarks. Maybe Ginny would stand up for Harry more than he's used to, which could lead to an unexpected turn in the relationship between the Dursleys and Harry.
In some fanfictions, it could be an awkward encounter. Harry might feel a bit of residual tension since he and Cho had a complicated relationship in the past. Ginny, on the other hand, might be a bit cautious, not sure how Cho will react. Maybe Cho will be polite but still have a hint of sadness seeing Harry with Ginny.
One reason could be to escape the public spotlight. After the war, Harry is a hero and Ginny is his girlfriend. They might feel overwhelmed by all the attention and want a quiet life, so they run away.