[Sister! reader insert]
You are the youngest daughter of King Agnarr and Queen Iduna and the youngest sister of Elsa and Anna. The three always played together until that night happened, After that you and Anna had to separate from Elsa for 13 years...
"Elsa! Psst." Anna called her older sister, she then climbed the bed and helped her younger sister who was you up to the bed. You both were shaking Elsa's body to wake her up.
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"Elsa! Wake up, wake up, wake up!" You said as Anna and you shook Elsa up.
"Anna, (Y/N), go back to sleep..." Elsa said to her younger sisters before she closed her eyes again.
Anna sighed before she laid on top of Elsa and you sat on her legs. "We just can't. The sky's awake, so we awake. So we have to play!"
"Go play by yourselves." Elsa pushed her sisters off her bed and went to sleep again. You thought for a second and you gasped as you had an idea.
You climbed on the bed and opened Elsa's eyelid, saying to her. "Do you wanna build a snowman?"
And it worked, Elsa opened her eyes and smirked at you both.
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"Come on, come on, come on!" Anna was very excited as she tugged her sisters' arms quickly. They ran down the staircase to the main hall. They all giggled as Elsa closed the door. "Do the magic, Do the magic!"
Anna and you wanted to see your sister's ice power very much. She loved winter things like snowballs, snowmen, ice skating, and hot chocolate as her favorite drink.
Elsa moved her hand and the magic formed into a snowball. Anna and you were awed as you both watched it.
"Ready?" Elsa asked, Anna and you nodded in response. And then, Elsa threw it upward and it became a rain of snowflakes falling down.
"This is amazing!" Anna said, jumping around happily.
"I want to play skate, Elsa!" You asked your sister.
"Of course. Watch this." She stomped her foot on the floor, which turned into an ice rink, making Anna and you slide.
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You three built a snowman together, Anna put the top on the snowman while Elsa and you rolled the bottom. Elsa put the carrot on the snowman's face and turned him around to her sisters, voicing him.
"Hi, I'm Olaf! And I love warm hugs!"
Anna and you gasped in delight as you two ran to Olaf and hugged him. "I love you, Olaf!"
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You three were skating together as you hugged on the snowman's side, Anna was holding Olaf's hands as Elsa used her magic to push all of you around the hall.
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You three then slid down on the snow slide, Anna sat in front, Elsa was at the back, and you were in the middle before you slid down from the snow pile.
"Tickle Bump!" Anna squealed in happiness as she jumped into a snow pile.
"Hang on!" Elsa said while she created more snow piles.
"Catch me!" Anna called to her.
"Hurray, Anna!" You cheered for Anna as you saw Anna going higher and higher.
"Gotcha!" Elsa said as she created the snow pile beneath her feet.
"Again!" Anna then jumps higher and faster.
"Wait!" Elsa then quickly created more piles as Anna jumped quicker.
"Anna, I think you should stop." You warned, your face frowning.
"Slow down!" Elsa said before she slipped and landed hard on the ground.
"Elsa! Are you okay?" You asked your sister as you kneeled down. Elsa looked up to see Anna jump out of the snow in panic.
"ANNA!"
Elsa blasted her magic and it hit Anna's forehead and made her land on snow and pass out. Elsa gasped as she stood up before taking your hand and running to Anna. You both kneeled down beside Anna before Elsa put Anna's head on her lap.
"Anna..." She then noticed a streak of her strawberry blonde hair turned white. You saw that and cried on Elsa's shoulder.
"Mama! Papa!" Elsa called for her parents before hugging Anna and you close. She didn't notice that the magic was covered all around the hall due to her emotional distress.
"You're okay, Anna. We got you." She cooed Anna who was still unconscious in her arms. The door opened and she saw her parents with their faces shocked.
"Elsa, what have you done? This is getting out of hand!" Agnarr said as Iduna gasped and they ran to their children.
"It was an accident... I'm sorry, Anna." Elsa said to them as she looked back at Anna before her mother took her. You hugged Elsa tight and sobbed on her shoulder as she hugged you back and tried to comfort you.
"She's ice-cold." Iduna exclaimed after she brought Anna into her arms.
"I know where we have to go." Agnarr said to her. He then told his wife to prepare the horses while he rushed to the library to find a map of the troll village.
"Do you think Anna will be okay?" Elsa asked worriedly.
Iduna placed her hands on her head as she smiled warmly. "Don't worry, Elsa. Anna'll be safe and sound."
Agnarr then returned with the map and hopped on his horse that you and Elsa were on when Iduna and Anna were on the other one. You all then headed to the troll village to ask for help.
