Long ago, two races ruled over Earth; Humans and Monsters. One day, war broke out between the two races, and the humans, filled with determination, won the war, and sealed the monsters deep beneath Mount Ebott with a magic barrier, which only one with a human soul can pass through. You can go into it, but you can't get out.
Years later, a girl named Frisk, saved the whole monster realm through her mercy and soul of determination. Since then, life has been great and thrilling. Frisk became the ambassador of the monsters, and introduced them to the present humans, who have long forgotten the tragic battle. Because of this, and with the clever girl's story, the humans believed that the monster kind is not the horrifying race they used to be.
The humans welcomed the monsters and agreed to develop friendship and connections with them to help both kinds grow strong in peace. Many people, including the ones who stuck with the outdated tale, have accepted peace between humans and monsters through time. Many of Frisk's friends, including the girl herself, was very pleased how everything turned out.
Everything is at it's best and all was well... Right?
It was a lovely morning. The sun was shining bright into our little heroine's room. As her holiday for the summer began, she couldn't wait to kick it off and have a fabulous time.
'Ring~~' The alarm clock waked her up.
Frisk turned it off, and woke up with a huge smile on her face.
'I can't wait, it's finally summer! I've been waiting for it to come for so long!' She thought.
As she exited her room, did her usual morning routine, and as she went down to have breakfast, greeting her is a familiar and kind face.
'Good morning, my child, how are you feeling today?' Toriel asked.
She looked at her happily. 'Great! I can't wait for summer to start!'
'Glad to hear it,' Toriel replied, patting her daughter's head. 'Had a good sleep last night?'
'Had a little dream with him again,' Frisk told her mother, sitting at the table. 'I just couldn't help but feel sad every time I think about him.'
Toriel was confused. 'Asriel Dreemurr?'
'Yeah, I miss him.' She said sadly.
As soon she started eating, her dad, Asgore, came over.
'Cheer up, Frisk, I'm sure you'll find someone else you love soon.' He kindly told her.
'It's just... I don't know why he is so resistant to me saving him.' Frisk replied. 'Why can't he just come with us and have a happy life? This place is much better than the underground. He'll have so many friends to play with him! He doesn't want to be alone, that's what I know. Why did he just close his door immediately on the subject?'
'None of us will ever know,' Toriel said. 'But it's his decision, you can't force him.'
Asgore nodded. 'Tori is correct. I understand you have been sad a lot of the time because of him, but you have to move on. We were pretty sad too, but we thought he could've saved us all. However... we were wrong. The point is, we know you can work past this.'
He dried the tears in Frisk's eye. She grinned a bit.
'Thanks, dad. It means a lot.' She responded. She suddenly had an idea. 'You know what... I just thought of something...' Frisk looked at the picture mountain on the wall.
'Huh? What's wrong, my child?' Toriel asked.
Frisk finished her meal, got up and started thinking. A minute later, she glanced at her parents, and smiled.
'I'm going back,' she said, then rushing out the door.
Asgore was shocked, and tempted to chase after her. 'No! Frisk, come back this instant!' He shouted. But she showed no sign of returning.
Toriel looked at him. 'I have an idea, dear.' Then she whispered something to him.
'Ho, that's wonderful, honey!' He gave her a high-five.
As Frisk ran through the streets, she met some of her friends.
'Whoa, hey kid, what's the rush?' Sans asked.
'I'm going back for someone,' she replied, then dashed past him.
Sans' brother came over. 'What's the human doing? She just ran past the great papyrus so quickly!'
'No idea,' Sans told him. 'Probably going back up the mountain.'
As she got near the beach, she ran into Undyne, who was just jogging near her.
'Hey, Frisk! Glad to see you! Where are you off to?' She asked.
'I'm going back up the mountain. You won't understand why, though,' Frisk told her. 'Catch me if you can!'
Even Undyne couldn't catch up to her after that.
'Whoa, since when did she get so fast?' She was shocked.
'Did you see that!?' Her friend, Alphys, came to ask. 'I've never seen her like that!'
'She must be really desperate for something to be like that.'
Frisk got back to Mount Ebott, and was walking back up to the entrance of the cave. She was really tired.
'Phew! Why did I have to run so quickly!?' She asked herself.
As she looked down, she was remembering the first time she fell. It was a scary experience. But, it was an adventure of her life. She never regretted the decision to go back down after that.
'Asriel? She called out. 'Can you hear me from up here?'
As the echos travelled, she was hearing no signs of reply.
'Seems like I'll have to jump down...' Frisk thought. Then she shouted into the cave. 'Asriel, I'm coming for you!'
A second later, she was falling into the deep and dark cave that the monsters left behind. However, to her surprise, as she can almost see the flower bed, she saw something glowing above it.
'Huh? What's that?' She thought.
As she thought she was going to land, the portal sucked her in. She was frightened.
'Wait, what!? Hold on! This wasn't supposed to happen! What's going on!?!?'
As she was screaming inside the portal tunnel, she was slowly travelling into a magical place, far far away...