All the realms united by the former evil queen regina and recrowned as the good queen, the dark one died and heroes won and lived happily ever after but they don't know if the dark one power survived so they just scratched that as gone.
In storybrooke one can see all the magicals realms are in one place, heroes gathered under one roof to witness the coronation of the evil queen regina as the good queen while they enter a new beginning a miserable young man lives in the woods in a rundown wooden house.
The boy's name is Leroy, he's without any parents or siblings, all alone since his birth and living in poverty. He's bears Jealous of everyone else living in the world, committed multiple betrayals and murders that darken his heart further.
While everyone is happy celebrating, Leroy is hunting in the woods with a bow, he then stumbles on a black dagger with an elegant design sitting on a table from stone with the same designs on the dagger, he then stretched him hand and picked up the dagger but as he picked it up, dark power rose from the dagger and enveloped him.
"What is this? What have i stumbled into" he tried to let go of the dagger but he couldn't, the next minute he lost conscientiousness.
Next moment he woke up in the same place, but the stone table is nowhere to be seen instead there is a metal circle on the ground that has strange symbols on it and he looked around him and he found nothing, not even the dagger nor his hunting bow so he stood up and left back to his little house and his expression was quite sad.
~No meat this time, and whatever that was earlier I have no idea~ Leroy thought as he entered his home and sat on a wooden chair then picked up a piece of bread and ate what little he had left of food.
He slept at night, but suddenly he started hearing whispers out of nowhere, he woke up and wore his hunting clothes and followed the whispers but a voice interrupted him in the way.
"Do you hear that dearie?" a man with Crocodile skin and amber eyes wearing a red cloth said.
Leroy jumped up as the voice came out of nowhere and asked "who..who the hell are you?"
"Well dearie, think of me as your guide to the darkness like how all Dark ones did before you" the Crocodile replied.
"Dark one, i heard about it before, it is a monster who tried to destroy the realms once" Leroy said and then asked "you said before me? What do you mean?"
"Hehe, the darkness chose you to be it's new vessel, and the dagger once again appeared before you and when you touched it, it gave you power" the Crocodile replied to his question.
"So it's that thing earlier, and those whispers I keep hearing are what are they?" Leroy asked once again.
"Follow them dearie and you will find out, and once you do it will give you all the dark ones information and power and remember never give up the dagger" the Crocodile replied and disappeared.
~that's it? Well at last it's my time to rise and put those heroes through misery~ Leroy thought as he grinned and continued following the whispers while also making small laughs.