Yes, there might be such fanfictions out there. Fanfiction communities are full of creative and diverse ideas. You can start by looking on popular fanfiction websites like Archive of Our Own or FanFiction.net. Just search for 'female Harry' and 'duel monsters' in the search bars and you'll likely find some relevant works.
A giant, hulking beast - type duel monster could also be very powerful. It might have incredible strength and endurance, able to take on multiple enemies at once. Its sheer physical presence could intimidate opponents, and it could use its brute force to smash through defenses and deal massive damage.
Well, it could change the power dynamics completely. If Naruto can summon duel monsters, he might have an extra edge in battles. For example, against strong opponents like Pain or Madara. He could use the monsters' unique abilities to turn the tide of the fight, which would make the plot more unpredictable as his enemies would have to deal with not just Naruto but also his summoned monsters.
Since we don't have more details about the light novel, we can only assume general things about the mc. The mc might be a person with a special ability or background that allows them to obtain and utilize liquid x. It could be that they have a unique heritage that gives them access to this monster - repelling liquid. Or perhaps they stumbled upon it during their travels and figured out its use through trial and error. The mc is the key player in this story who uses liquid x to fend off the monsters and drive the plot forward.
Perhaps female Harry is initially shunned at Hogwarts for her strange new ability to summon duel monsters. But as she starts to master it, she gains the respect of her peers. She could then use her duel monsters to defend the school from dark forces in a way that traditional magic couldn't. Or maybe she gets involved in a tournament where both magic and duel monster summoning are used, and she has to prove herself against other powerful opponents.
According to the plot you provided, I recommend the novel "Eternal Immortal Eyes" to you. This novel introduced that the main character has two immortal eyes, can see through illusions, has infinite divine powers, and can summon a divine sword to kill all gods and devils. It fits the plot you described very well. I hope you like this fairy's recommendation. Muah ~😗
I recommend "Invincible Heroes: Summoning from the Starcraft". This novel is a game novel written by the author, Erba Yanhua. The protagonist had traveled to a world where heroes were invincible. He could summon all kinds of soldiers, interstellar troops, heroes of monsters, bosses of the Alden Ring, and so on. At the same time, he could also summon interstellar battleships, the core of the Bug Race, and the core of the Machinery Race, transforming the planet into a game in the eyes of the Earthlings. I hope you like my recommendation. Muah ~
😋I strongly recommend " Starting from Summoning Goblins " to you. This is an urban supernatural novel. It's a story about a modern city transmigrating to another world. Everyone has a summoning book and can summon all kinds of contracted monsters. Moreover, monsters can also be upgraded according to the levels of bronze, silver, gold, platinum, diamond, and so on, making them even stronger! I hope you like my recommendation.😗
Some official fan communities dedicated to the source material of 707 and the MC might also have fanfic sections. These communities are a great place to find fan - created content, as the members are usually very passionate about the characters and share their own works or recommend others' works.
There are several places to find '707 x mc fanfic'. First, check out the official forums or communities related to the original work that 707 and mc are from. Fans often share their fanfics there. Additionally, social media platforms like Tumblr or Twitter can be good sources. Sometimes, fans post links to their fanfics or even post short snippets directly. However, the most reliable places are still dedicated fanfic websites like AO3 and FanFiction.net as they have better organization and a wider range of content.