Fallen

(Y-Yo! THis is my first cross-over and first Miraculous Ladybug and Undertale fanfic. Plagg and Tikki will be in it, but they will only be in it to give advice or what not, There may be times when Chat Noir or Ladybug appear, but not really, and of course an Identity reveal. U-umm... Please enjoy, I own only my crappy writing skills...)

Long ago, two races ruled over the Earth: Humans and Monsters

One day, war broke out among the two races.

After a long battle, the humans were victorious.

They sealed the Monsters underground with a magic spell.

Many years later...

[Mt. Ebott, 201X]

Legends say that those who climb the mountain never return.

Marinette may be the luckiest girl on earth! She was on a camping/hiking trip with her class and they were climbing a mountain, uhhh crap what was it's name again? Oh right!, Mt. Ebott! She looked ahead and stared at the love of her life, Adrien Agreste, the star model with beautiful blonde styled hair and strikingly beautiful green eyes, if he were to look in her bluebell ones she would most likely melt. "Adrikens!" the voice made Marinette want to vomit, sadly she was also the world's most unlucky girl. She continued walking, following the group, in their four man team they had Marinette, Adrien, Chloe, and Sabrina. So she was dragging behind in the back as she followed them. Adrien would slow his pace to a slow walk at times which Marinette took as he was trying to slow down for her so she wouldn't be left behind, which she was grateful for. But Chloe would catch on and grab Adrien's hand and pull him ahead, leaving Marinette behind, again. Marinette looked up and stared at the sun then her watch, "Hey! It's time for lunch!" she called out to the group. She frowned when she saw she was too far behind. She held her bag closer and ran to catch up.

When she caught up she smiled, "Hey, it's time for l-lunch." she cursed mentally when Adrien stared directly in her eyes, to show her she had his attention, causing her to stutter. Adrien smiled "Alright cool." he said and looked around and pointed at a tree, "How about we eat over there in the shade?" he suggested. Marinette nodded and walked over to the tree and set the blanket up. Chloe scoffed and walked over, "Sabrina, my pillow." she ordered. The ginger nodded and opened her bag and set down a flat pillow for Chloe. Marinette frowned sightly but did nothing. Adrien sat beside Marinette and smiled, "So who was in charge of bringing food?" he asked, looking around. Marinette blushed and held her hand up slightly and pulled out the tub-a-wares of food and paper bag with sandwiches. "Did you bring caviar?" Chloe asked obnoxiously. Marinette looked up and frowned, "No... Why would I bring caviar?" she asked. "Because it's what I want to eat." Chloe retorted. Marinette's frown deepened, "Sorry Chloe, if you want caviar then go find a river and pickle the fish roe." she said and looked at Adrien, "I pack PB&J sandwiches, is that okay?" she asked blushing. Adrien smiled, "Sure, I don't mind." he said, he hardly got to eat peanut butter and Jelly because it wasn't 'fancy' enough or something. Marinette smiled, but it didn't last for long cause Chloe scoffed, "I'm not eating that commoner food!" she nearly screeched, or it seemed like one in Marinette's head. Marinette frowned, "Then you would be fine with not eating at all." she snapped back, she was getting annoyed with Chloe's 'Oh, I'm so much better than you cause my Daddy is the mayor of Paris' attitude. Adrien looked at Chloe, "Chloe if you weren't going to eat what Marinette packed then you should have brought your own meal." he said and turned to Marinette and looked at the tub-a-ware and tilted his head it was a fairly large container and in the shape of a circle. He didn't ask questions, since he figured Marinette will tell them what was in it sooner or later. Marinette passed the sandwiches out and began eating. She was so nervous at the moment and swore if Adrien looked at her she would choke. Adrien smile at the taste, he tasted something different than usual in the bread but ignored it since it gave the sandwich a brilliant taste.

When they finished with their meals Marinette opened the tub-a-ware and revealed a cinnamon apple pie. "I baked it last night..." she said in a shy voice. Adrien's eyes widened, "It smells amazing Marinette!" he praised happily. He felt shuffling against his chest and wanted to frown, but didn't so Marinette wouldn't get discouraged. Marinette blushed heavily, "T-Thank you." she said and pulled out the plastic plates. Carefully she cut the pie with a plastic knife. She put the slices on the plates and passed them out, even giving Chloe one. Before Adrien could take a bite he heard Chloe spit the pie out and knock his out of hand. He looks up at Chloe with a glare. "What the heck is your problem?" he asked angrily. Chloe scoffed, "You should be thanking me Adrikins, that tasted like crap." she said and glared at Marinette, who's head lowered. Adrien stood up and glared at Sabrina who was about to throw her slice to the ground, "Don't you dare drop that. If you are going to waste it give it to me." He said. Sabrina nodded and place the pie in his hands. Adrien took his fork and cut off a piece of the pie and took a bite, his eyes widened and he looked at Marinette, "Marinette this taste amazing! No that's not even good would put every baker in France to shame!" he praised. Marinette looked up shocked, her eyes watered happily, she ducked her head and blushed heavily. Adrien looked at Chloe, "I didn't know how stupid your taste buds could be Chloe." he said and finished the slice of pie. He help Marinette clean up and stood up, "We should hurry, we are supposed to meet up with everyone later." he said and began walking, followed by the rest of the girls. Marinette's face was blood red, her eyes sparkled with tears she refused to let fall. 'He loved it...He loved my pie..' She thought and she felt like running forever. She heard a light giggle and she looked down and smiled at Tikki, who's head was slightly sticking out of the purse she carried.

When they reached to top of the mountain the sat down to take a break, they were the first there. Marinette eyed the giant hole, it wouldn't be safe to call this a camping space, what if someone fell? She stood up and walked over to the hole and peered in, "..." Kneeling down she pulled a pin out of her bag and dropped it. "1..2..3..4...5...6...7...8...9...10..." She stopped counting her eyes wide, "Holy cow..." Standing up she began to move away from the hole, until she felt someone behind her, turning around she saw a flash of blonde, but frowned when the hair was long and in a pony tail. "Hey Chloe can you move please?" she asked, she wanted to get away from the hole, asap. Chloe narrowed her eyes. "No, All day Adrien has been giving you attention, he's been sticking up for you. Well, I'm sick of it." She said angrily, and before Marinette could comprehend what happened, she felt wind and Chloe moving farther away from her, no, she was falling, her eyes wide with terror. Chloe's eyes were wide as well, what did she just do!? She screamed in her head. Marinette did the only thing she could think of, scream. Adrien ran over and saw Chloe standing where Marinette was and he ran over. He looked at Chloe and then down the hole. Marinette grabbed onto a root quickly letting out a wail of pain as her hands ripped at the sharp roots and her body tugged on them slowing her from her fall. Adrien's eyes widened, "Marinette!" he yelled panicked. "Hang on!" He looked around, he couldn't transform here, there was no way. He looked down and saw Marinette losing her grip. He glared at Chloe and grabbed the front of her shirt, fury and rage in his green eyes, "What have you done!?" he seethed and shoved Chloe away, causing the girl to lose her balance and fall backwards towards the ground behind her. He turned around and when he did, he saw Marinette's hand slip and she fell. A flash of red seemed to appear in his eels and he blinked, he felt his heart shatter, his eyes made it look like it was Ladybug falling, and he jumped, his mind seeing only ladybug falling in the place of Marinette, "M'lady." he called out reaching out to Marinette. Marinette couldn't hear him due to the wind in her ears, but to her it seemed like he mouthed, 'Marinette' and she reached out to grab his hand. Adrien tried to push himself forward, their hands slapped each other a few times before they grabbed onto each other. Adrien pulled Marinette to his chest and hugged her tightly, flipping themselves over so he would hit the ground, though he no longer saw his lady, but Marinette. Hugging her tightly he closed his eyes, "I'll protect you, princess." he muttered into Marinette's ear. Marinette clung to Adrien as the fell her eyes shut. And then, Darkness filled her mind.

/ Aw crud it's all crappy... I hope you guys like it so far, I'm sorry if they are OOC. I'll try to do better in the future. Gahh! I'm super embarrassed. Uh, follow, fav, or review if you like. It would encourage me to continue. / W-Well bye! Have a nice night.