Izuku watched the clock tick by as it neared the end of the school day. He couldn't wait to go home. Aizawa had called off training since it was important for them to rest once in a while, but this proved to be in his favor because of his curiosity about researching the Big Three's quirks.

He told himself that he would do it, but it's been an eternity since he nabbed some time to study what their fighting styles were and what their quirks could do. He was still fascinated by his fight with Mirio, but because of his minor incident of calling Nejire his older sister, he was thrown off task. But maybe it wasn't worth it.

When the bell rang, Izuku quickly hopped out of his desk and made a straight beeline for the exit, only to be joined by Mina, who had a slight glimmer of mischief twinkling in her eyes.

"So, Izuku! I heard you had a sister!" Mina commented as she walked beside Izuku. "And I heard she's a beauty to look at!"

"Er... I think you heard wrong..." Izuku said without a second thought, but when Mina put a hand over her mouth, he realized he had said something wrong. "No, not the part about her being a beauty! I'm talking about the part where she's my sister! I've been telling everyone she isn't my sister, but none of you guys are listening!"

"Because she hasn't disproved it yet! And no one seems to be able to elicit the truth from her! Your sister is wonderful at keeping your relationship with you a secret!"

Izuku's mind stopped working as he absorbed what she had just said. "Wait, you guys asked her if I was her brother, and she agreed we're siblings?"

"Yup!" Was Mina's only response.

Izuku let out a whimper and dragged a hand down his face in defeat. Why was she doing this? Nejire was making it worse than it had to be! It felt weird being the center of attention all the time in class since his classmates always asked him about his sister.

As for Bakugou, he seemed hell-bent on ignoring the situation. Even when some of his classmates asked him questions about Nejire being Izuku's sister, he just yelled at them and threatened to blow them up. It was so Bakugou like. Hopefully, it stayed that way.

"But hey, if she's your older sister, how come you never hang out with her? She seems to be a charming person based on the little time I spent with her, other than the times she touched my horns, but it's whatever!"

"I-I don't know, Mina! Maybe it's because we're not blood-related?" Izuku asked in a sarcastic tone.

"Then if you guys aren't actually siblings, is your relationship with her like a sister? Because that also works too!" Mina responded with her finger sticking up in the air as if she was saying the most profound thing in the world.

"What...? I..." Could he do that? Do people call others sister or brothers even if they aren't blood-related?

"Speaking of which, there she is!" Mina exclaimed as they made it out to the front entrance where Nejire was standing there talking with Yuyu.

Nejire turned her head around to see who exited the building and grinned. Her twinkling eyes latched onto his, making him blush like crazy.

"I gotta go, so I'll be seeing you guys around!" But before Izuku could slip away, Nejire hovered over to him and wrapped her arm around his neck. A squeak escaped from his lips as he felt her body press up against him. "N-Nejire?"

"Hey, little brother, how was school today? Have any fun?" Nejire asked, a sly tone echoing in her voice.

"I-It was fine! Why?" Izuku tried to pull away, but her grip was much stronger than he thought it would be. What did he expect? She was a third-year student at U.A., who had three whole years to train her body.

When Izuku stuck out his hand to get help from Mina, she stuck her tongue out and began walking away. "Good luck, Izuku! And have fun with your sister!"

"Ah! You betrayed me, Mina!" But there was nothing he could do as Mina waved her hand at him and walked away. With a gulp, Izuku looked down at Nejire and worked up the courage to smile at her, albeit nervously. "So... Uh... Why are you hugging me?"

"Oh, come on! Your own sister can't hug you? That hurts my feelings..." Nejire pouted as the usual joyful glint faded from her eyes.

"Hey, stop teasing Izuku to death! I swear if you keep up this lie up, his death is going to be your doing." Yuyu pried Nejire away from Izuku, giving him freedom from a pouting Nejire.

"That's not fair! You keep thinking this is a lie, but Izuku really is my brother!"

Yuyu raised an eyebrow at her protests. The look on her face told Izuku she was somewhat believing Nejire because she was repeating the lie so many times. Speaking of which, Nejire was escalating it a bit too much.

"Nejire? Aren't you taking it a bit too far?" Izuku asked as he tried to send secret hand signals to stop spreading the lie, but of course, it didn't work.

"Taking what too far? Showing my love for you?" Nejire asked with a goofy grin plastered on her face. "If so, you're absolutely right! It's because you are my lovely younger brother!"

It was all fun and games for Nejire, wasn't it? For him, it was fun and games until he had to explain everything to his classmates. But what if he told everyone Nejire was his sister? No, but that wouldn't make any sense at all! He knew nothing about Nejire since he never met or talked to her much, other than a few encounters here and there!

It was just going to be an embarrassment if his friends and classmates began asking him questions about her, and all his responses were just flat out false. He didn't want to add sticks to the already quickly growing fire.

"Well, it was nice meeting you today, Izuku! As it always is! But now I have to get going since Yuyu and I made some plans! I wish I could hang out longer with you, baby brother, but until next time!"

Yuyu shook her head and placed her hands on her hips before shifting her eyes toward Izuku. "Yeah, what she said. I'll see you around, I guess. And make sure to take care of yourself."

"Yeah, I will..." Izuku trailed off as he waved goodbye to his two beautiful upperclassmen. It was nice to know Nejire cared for him, but the fact that even Yuyu cared about him caused a slight warmth to grow in his heart.

But what if they only cared for him because he accidentally called Nejire sister? What if that was the sole reason they thought about him? Did they only think of him when they saw him? That was disheartening to think about.

Still, it wasn't like he could do anything about it since he couldn't control their thoughts. And it wasn't like they even had to pay attention to him at all.

In fact, it seemed like Nejire just enjoyed teasing him. Then she moved on with her life after getting her fill of making him embarrassed. And even if he could prepare himself for how touchy she was, he still didn't know how to respond to her actions.

"Oh, Izuku! I forgot! It totally slipped my mind!"

Izuku watched as Nejire hovered over to where he was. What was it this time?

"Here." Nejire set her backpack down on the ground and dug through it before bringing something out. Clenching it in her fist, she held Izuku's hand up and placed whatever was in her fist into his open hand. She curled his hand back and smiled. "Enjoy the tasty treat. I'll see you around, little brother."

With that said, Nejire picked her backpack up and flew back to walk with Yuyu. Izuku stood still in shock before opening up his hand to reveal a candy wrapped in a crinkly wrapper.

Izuku couldn't help but smile as he gazed at the little piece of candy. It should have been nothing really, but here he was grinning like a fool. The warm feeling in his heart strengthened as he slowly opened the wrapper up and popped the candy into his mouth.

That was until he turned around and saw several of his classmates watching him with their mouths hanging wide open. With dread washing over him, he smiled nervously and waved his hands toward them. "Uh... Hi?"

Author's Note: This is a much shorter chapter than usual since it felt right to end it here! I hope you enjoyed it! If so, leave a review!

Also, I have no idea what the next few weeks look like since I am training at a new job and I have a vacation next week that lasts the whole weekend. Maybe I can upload the next chapter on a Friday. But I will try my absolute best to write and post for you guys despite my tiredness!

With love from your favorite writer, Out4Lunch!