Undertale OC x hermione

What it's based on(Actual story)

A/N: Hi! If you really want you can change Yuansu to Y/n, or think it as expanded Y/n. It's actually entirely a coincidence. But without further ado, let's reveal what's the story based on!(Well one part of it)

Yuansu had always been shy and introverted, but possessed a sharp intellect and immense power. However, his short temper and low self-esteem often held him back from reaching his full potential. Yuansu was protective of those he cared about, and his sister Chara was no exception. Chara was always by Yuansu's side, fiercely guarding him from any potential threats, and their bond was as strong as any sibling bond could be.

Despite his reserved nature, Yuansu was observant, and he couldn't help but notice Hermione's intelligence and determination during their classes. Whenever she was in the common room, reading or studying, Yuansu couldn't help but steal glances at her. He admired her greatly, but he never thought he would be able to gather the courage to confess his feelings.

One day, Chara and Yuansu were sitting in the common room, Yuansu reading and Chara idly chatting with some other students. Suddenly, Hermione approached the two, her books clutched tightly to her chest. Chara narrowed their eyes at her, feeling protective of Yuansu.

"What do you want?" Chara asked, their voice cold.

Hermione looked taken aback but quickly composed herself. "I just wanted to talk to Yuansu. I think we have a lot in common," she said, looking at Yuansu with a warm smile.

Chara sneered, "I don't trust you. You're up to something."

Hermione's smile faltered, but she didn't back down. "I'm not up to anything. I just want to be friends."

she soon softened when she sensed Hermione's genuine interest in her brother. Chara could see that Hermione had developed feelings for Yuansu, and she couldn't help but smirk at the realization. Hermione, on the other hand, was confused by Chara's sudden change in demeanor.

Meanwhile, Harry and Hermione had developed a strong platonic bond. They confided in each other and had a deep understanding of one another's struggles. After being very confused and then realizing what she was feeling, Hermione had sought out Harry, hoping to confide in him. "I don't know what to do, Harry," she said, wringing her hands. "I think I have feelings for Yuansu, but I can't act on them. What if it ruins our friendship?"

Harry put a comforting hand on her shoulder. "Just take things slow, Hermione. Don't rush into anything. If it's meant to be, it'll happen naturally."

At the same time, Chara also confronted Yuansu, urging him to ask Hermione out.

"Hey, Yuansu. I've noticed you staring at Hermione a lot. Do you like her?" Chara asked.

Yuansu turned bright red and frantically denied it. "N-no! Why would you even ask that?"

"Because I'm your sibling and I can tell when you're interested in someone. You should ask her out," Chara said with a small smile.

"I can't do that. It's not worth the risk of my mental health getting worse," Yuansu said, their voice barely above a whisper.

Despite their reservations, Yuansu and Hermione continued to spend time together and grew closer as friends. They talked about their interests and shared their struggles, and Yuansu found himself becoming more and more drawn to Hermione's kindness and intelligence.

One day, when hermione and Yuansu were studying, Ron entered the common room with a sour expression, and his eyes were fixed on Yuansu, who was sitting withHermione.

"What are you looking at?" Yuansu asked, his tone casual, although he knew what Ron was getting at.

Ron scoffed, "Just admiring the fact that you can sit here with Hermione and not even think about how I feel."

Yuansu rolled his eyes, "We're just friends, Ron. Besides, you're the one who's always been jealous of Hermione's intelligence and her ability to get along with others."

Chara, who had been quietly observing the conversation from afar, chimed in, "And even if they were more than friends, why does it matter to you, Ron?"

Ron glared at Chara, "It matters because Hermione should be with someone who can actually make her happy, not some introverted loner."

Hermione jumped in, "Yuansu makes me very happy, Ron. And he's not a loner, he just takes time to warm up to people."

Ron rolled his eyes, "Whatever. I'm just saying that if you had any sense, Hermione, you'd be with someone who actually knows how to treat you right."

Before anyone could react, Ron suddenly leaned in and kissed Hermione forcefully on the lips. Yuansu, who had been looking away but still aware of what was happening, quickly stood up and ran off.

Hermione was livid, "How dare you, Ron! That was completely inappropriate! IMPEDIMENTA! FURNUNCULUS! LOCOMOTOR WILBLY-"

Ron, who was blasted back, covered in pimples and down on the floor, was cowering, but something told him that wasn't the worst to come

She then turned to Chara, "I'll be right back, I need to check on Yuansu."

As Hermione stormed out of the common room, Harry quickly followed her. Chara, meanwhile, menacingly advanced towards Ron, a fully neon red smile, 2 fully neon red eyes, and a knife "You've made a huge mistake."

Ron flinched at Chara's tone and took a step back, realizing that he might have gone too far this time.

"I-I didn't mean to upset anyone," Ron stammered, looking around for a way to escape.

Chara's eyes narrowed, "You're jealous, aren't you? Jealous of Yuansu and Hermione's friendship? I understand, but that's no way to act on them"

Ron scowled, "I just don't understand why she's so close to him. He's just a bloke from another school. What does he have that I don't?"

"Respect, for starters," Chara retorted, sharper than a blade. "Yuansu treats Hermione like an equal, not like some kind of trophy to be won."

Ron looked down at his feet, feeling ashamed of himself. "I know I've been acting like a prat. I'm sorry. I'll make it up to them, I promise."

"You better..." A creepy smile on her face, "Or else..." She caused a little cut, starting to burn into her his skin, Ron letting out a whimper of pain."The loss of your friends will be the easiest to bear."

Hermione sat down next to Yuansu and put a comforting hand on his shoulder after they found him. "I'm so sorry about Ron. He has no right to treat you like that," she said softly.

Yuansu shrugged. "It's okay, Hermione. I'm used to people treating me badly," he replied, his voice barely above a whisper.

Hermione frowned at his words. "That's not true. You're one of the kindest, most selfless people I know. You deserve so much better," she said, her eyes locked onto his.

Yuansu looked away, feeling embarrassed. "Thanks, but I don't need pity or fake words," he said, trying to keep his voice steady.

Hermione's eyes narrowed at his words. "You think I'm pitying you? Yuansu, I care about you. I have for a long time now," she said, her voice getting softer with every word.

Yuansu's head shot up, his eyes widening in surprise. "Wh-what?" he stammered.

Hermione leaned in and kissed him gently on the cheek. "I like you, Yuansu. I really do," she whispered.

Yuansu was completely caught off guard by the kiss, and his face turned beet red as he stammered out a response. "I...I like you too," he managed to say, his voice shaking slightly. "Thank you for everything."

As they looked at each other, they suddenly noticed Harry standing a few feet away, a smirk on his face. He had clearly been watching the entire exchange, and Yuansu felt his face turning even redder.

Hermione noticed Yuansu's discomfort and turned to Harry with a scowl. "Don't you dare say a word," she warned, and Harry simply chuckled and walked away, humming a tune loudly as he went.

Despite the awkwardness of being caught, Yuansu and Hermione couldn't help but smile at each other, their bond growing stronger by the second. As they walked back to the castle, hand in hand, Yuansu knew that he had found something truly special in Hermione. She was the perfect balance to his introverted and shy nature, and he knew that together they could face anything that came their way.