Well, a plot could revolve around Shadow protecting Chris from a group of villains who are after Chris for some special ability he has. It could show how their relationship grows from a protector - protectee one to a true friendship. And then they might face a final big battle together against the main villain.
One idea could be a character discovering a hidden power within the shadows that they must learn to control. Maybe they are initially afraid of it but then realize it can be used for good.
For Shadow of the Colossus fanfiction, you could write about a hidden society within the Forbidden Land. They worship the colossi in a different way than the main narrative implies. Wander stumbles upon this society during his journey. Or, you could do a fanfic where the colossi are not actually the 'bad guys'. They are guardians of something far more important and Wander is being used by the shadowy forces that sent him on this quest. And finally, a story about how the magic or energy that powers the colossi affects the wildlife in the Forbidden Land in ways not shown in the game. For instance, there could be mutated or super - intelligent animals due to this energy.
Another plot idea is to create an alternate timeline within the 'a walking shadow' world. This could involve different events happening to the characters, leading to new relationships and challenges. For example, a character who was once an enemy could become an ally in this new timeline.
One idea could be that Bella, with her experience in the supernatural world from the Twilight series, somehow crosses paths with Chris Halliwell from Charmed. They could team up to fight a new kind of evil that combines the dark magic from the Charmed universe and the vampire - werewolf related threats from Bella's world. For example, a coven of vampires who have learned some dark spells.
Maybe a story where Female Chris discovers a hidden power within herself while on an adventure with Sonic. This power could be crucial in defeating an evil force that threatens their friendship and the safety of their friends. It could involve her having to overcome self - doubt and learn to control this new ability.
Well, they could be in a situation where they discover a hidden treasure map. They then embark on a journey filled with mystery and danger to find the treasure. Along the way, they learn more about each other's strengths and weaknesses and form a strong bond. They might also face some obstacles like a group of thieves who also want the treasure.
One idea could be that Chris and Clarisse go on a quest together. They face various challenges like tricky mazes and mythical creatures. Along the way, they discover new things about each other and their own strengths.
One idea could be that they discover a new creature during Aviva's pregnancy. Maybe it has some special ability that could help with her pregnancy in some way, like a creature that emits a calming aura. Another plot could be them dealing with the challenges of being adventurers while expecting a baby. They might have to modify their usual wild adventures to ensure Aviva's safety and the baby's.
Well, a cool plot might be that Clarisse and Chris get sent on a secret mission by Chiron. Along the way, they discover an ancient prophecy related to their families. As they try to figure out the prophecy, they run into old enemies of their families who are trying to stop them. They have to rely on each other's skills, like Clarisse's combat abilities and Chris's strategic thinking. This could lead to a deeper understanding and connection between them.
Another plot could be that Chris gets sent to the future by accident. In the future, the world is completely overrun by the creatures from the bio - horror universe. He then has to find a way to travel back to his own time while also gathering knowledge about how to defeat these future threats in his present. For example, he might discover new weapons or weaknesses of the enemies.