In a Cuck old Winchester RWBY Fanfic, the main characters would likely include at least one Winchester. This could be a young Winchester who is just starting to discover their place in the RWBY world. Then there are the RWBY characters we all know. Ruby, with her positive attitude and powerful scythe skills, would play a role. Weiss, the ice - queen - like character, would also be involved. And their interactions with the Winchester character would drive the story forward, whether it's through cooperation or conflict.
I'm not entirely sure specifically what a 'cuck old winchester fanfic' is about without more context. It could potentially be a fan - created story related to something named Winchester, but the 'cuck old' part is rather unclear. It might be some sort of unique or made - up concept within a particular fan community.
One interesting plot idea could be exploring the backstory of the Winchester family in the RWBY universe. Maybe they have a long - hidden secret that is gradually revealed. Another could be a story where the characters face a new, powerful enemy that forces them to adapt and grow in unexpected ways. It could also be about a character from the Winchester family having a unique friendship with one of the RWBY main characters that changes the course of events.
Since I'm not entirely sure what 'cuck old winchester fanfic' is really about, it's hard to recommend similar ones. But if it's related to the Winchester from Supernatural, you could try searching for Supernatural fanfics that focus on the family dynamics or their adventures in different eras. There are many general Supernatural fanfics available on platforms like Archive of Our Own.
The main characters are the Winchester boys, who we know from the Supernatural series. They are likely to be in some sort of distress or situation that leads to the angels' adoption. The angels themselves are also main characters. Depending on the author's take, it could be a group of angels or a single, more prominent angel like Gabriel or Raphael, but Sam and Dean are definitely at the heart of the story.
Obviously, Artyom would be one of the main characters. And then there would likely be the main RWBY characters like Ruby, Weiss, Blake, and Yang. They might interact with Artyom in different ways. For instance, Ruby could be curious about Artyom's weapons or his background.
It's also possible that the fanfic could focus on side characters from RWBY but in a new light related to the'shine' concept. For example, Penny could be a central character in the 'rwby shine fanfic' if the story is about how her robotic nature can shine in a different way, like her circuits starting to glow with a new kind of energy that changes her abilities and her role in the RWBY universe.
Well, of course, Emiya is one of the main characters. He brings his own set of skills, like his swordsmanship and his ability to project weapons. Then there are the RWBY characters such as Ruby Rose. Ruby is a key figure as she is the leader of Team RWBY. Her innocent yet determined nature often clashes or combines interestingly with Emiya's more stoic and experienced personality.
Well, it likely still features the main characters from RWBY like Ruby, Weiss, Blake, and Yang. But in the context of redemption, perhaps there are new characters or side characters who play a crucial role in their journey towards redemption. Maybe an old enemy who now has a change of heart and becomes an ally.
I assume Rose and Bird are the main focus. However, in RWBY - related fanfics, there are often other characters from the RWBY universe that interact with the main ones. So perhaps characters like Ruby, Weiss, Blake, and Yang could also make appearances in 'rosebird rwby fanfic' and play supporting roles or be part of the overall plot in some way. Maybe there are also antagonists in the fanfic that are either new or based on existing RWBY villains.
There could also be new characters introduced in the RWBY Gods fanfic. Maybe a character who has a special connection to the Gods, like a prophet or a chosen one from a long - forgotten tribe. This character could play a crucial role in bridging the gap between the RWBY characters and the Gods.