Well, one version of the Jeffy Scary Story could be about Jeffy getting lost in a spooky forest at night. The trees were all gnarled and seemed to reach out like claws. He heard strange noises all around him, like whispers that he couldn't make out. Every step he took, the ground seemed to shift beneath him. As he walked deeper into the forest, he saw a faint light in the distance. But when he got closer, it turned out to be a pair of glowing eyes that belonged to some unknown, terrifying creature. He ran as fast as he could, not looking back until he finally found his way out of the forest.
Since I don't have the specific details of 'Jeffy's Bedtime Story', it might be a story that focuses on Jeffy's daily experiences during the day which he reflects on at bedtime. Maybe it's about how he made a new friend or learned a new lesson, and as he's about to go to sleep, he thinks about these things and that forms the bedtime story.
Obviously, it's Jeffy. Since the story is named after him, he is most likely the central figure around whom the story revolves. He's probably the one having all the experiences, whether they are exciting, scary or just ordinary, that make up the bedtime story.
The unknown elements make the Jeffy Scary Story so terrifying. We don't know what's going to happen next. For example, if Jeffy is in a strange place, we don't know what kind of creatures or dangers lurk there. It plays on our fear of the unexpected.
Well, Vegeta would be a likely character. He might be initially suspicious of the female Goku. Maybe he thinks she's a threat or just can't believe there's another Goku - like being. He could be there to add some comical moments as he tries to understand the situation.
In general, it's a bit of a toss-up. The strength of Manga Goku and Anime Goku can vary depending on the specific arcs and battles. Sometimes, it might seem like one is stronger in a particular situation, but that could change in another.
Another possible main character could be the villain that forces the two Gokus to meet. This villain could be a new, super - powerful threat that the two Gokus need to deal with. Their meeting becomes a crucial part of the story to defeat this powerful foe.
One of the characters who could betray Goku is Piccolo. Although they've been allies for a long time, in fanfiction, things can change. Perhaps an ancient evil force takes control of Piccolo's mind and makes him turn on Goku. Or it could be Krillin. He might be influenced by an outside force that convinces him Goku is becoming too dangerous. Also, don't forget about the Kais. If there's some sort of power imbalance or a threat they perceive from Goku, they might betray him to maintain the order of the universe in the fanfiction.