AN: lol why was this chapter hard to write- im prolly scared of the newly introduced character being ooc wops-

As soon as they arrived at the flat, Sai immediately started pacing around the living room frantically, all the while muttering to herself.

Yagi has never seen her this shook up before.

She's probably mad at him, and will probably give him the silent treatment. Or probably be intimidated. Worst case scenario, she runs away from home-

The number one hero immediately halted that train of thought, in fear of jinxing himself.

She suddenly stopped to stare at him blankly, before uttering, "So all this time you had a quirk, when I thought you hadn't."

He sighed, mentally preparing himself from the backlash. "Yes, and I'm sorry for-" Sai cut him off by waving her hand.

"Oh, no. I totally understand your reason, even though said reason does not make sense." She said, rolling her eyes. "But of course, I still have some questions about this..." She gestured to him, "...hero thing."

Yagi blinked. That was it? She... isn't mad?

Well, that certainly clears things up.

Yagi's pretty glad that she's calm about this. He's not really sure what he'd do if Sai reacted violently instead.

"Um, okay then." He muttered, before patting the spot beside him as he sat on the couch. "You might need to sit down." He said, as she sat next to him, her blue eyes glinting in curiosity and anticipation. "This is gonna be a long story..."

As Yagi finally finished his long ass tale, Sai merely blinked at him with a poker face.

It... sounds like a comic book plot. A really cliche comic book plot.

"One for All; so that's your quirk, huh?" Sai asked him blankly, as he nodded. "Well, I only have one thing to say, really." She said, letting out a snort of amusement.

She pointed at him. "Your quirk surpasses every quirk. It's basically a deus ex machina in itself."

Not only did it help him conveniently as he was previously quirkless, but it also (conveniently) helped other people.

To her surprise, he laughed. "Yeah, I guess you could say that." Yagi, scratched the back of his head sheepishly, which Sai found slightly adorable. "After all, it did gave me a quirk, and helped save lives."

"Ah," She muttered, as they both sat there on the couch together for a while.

Yagi... he's a good guy, and Sai is certain of that. However...

"Why did you become a hero, anyway?" She asked him, fiddling with her thumbs. "Were you... uh, forced to do it?"

He stared at her in surprise, as if not expecting the question. "Well, to be honest..." He answered in a low voice. "Someone... inspired me to be a hero."

Sai hummed, as she attempted to guess who was the special one, before a thought struck her. "...Was it my mom?"

Yagi sputtered, confirming her statement. "Wh-where did you g-get that idea?!" He stammered, blushing heavily as Sai snorted at his ridiculous reaction.

She shrugged, "I dunno, it was just a small hunch. I never said it was real." She looked up at him, narrowing her eyes. "Or was it?"

"..."

She smiled at him, before standing up and yawning. "Gah, whatever. Doesn't really matter what's your reason, as long as it has good moral standards."

Sai just found out about the hero society, and she still isn't quite sure what to make out of it. But as long as the world hasn't fucked itself up yet, then perhaps they aren't that bad.

"Where are we? What are we doing here?" Sai asked Yagi, as they stood in front of an old building.

It was weekend, and Yagi has some investigations to do in Yamanashi Prefecture. And he can't just leave Sai all cooped up in their apartment. So he decided to bring her, and maybe find a person (whom he can trust) to take care of her.

Good news is, he knows someone who lives in that prefecture.

Bad news is, it's his former teacher whom he haven't seen in years as he was too terrified of the man to even visit him.

Yagi is sure that he is going to regret his decision later. But then again it's too late to back up now.

"We're-" Yagi paused, correcting himself, "You're going to stay here, while I do my work." He said, as Sai blinked up at him.

The kid glanced at the building, before looking back up at him. "Are there any particular reasons as to why I can't come with you?" Sai deadpanned, before adding quickly, "Aside from the fact that it's probably dangerous?"

"Yes." He stated, which didn't really answer her question, before taking on his hero from after making sure no one was around their vicinity. "Alright then, I must go now. I'm almost late for my job." He quickly stated, ignoring Sai's look of incredulity and confusion.

She opened her mouth, as if attempting to speak, before closing it. Then she opened it again. "Are you... not gonna greet my babysitter?" She asked, crossing her arms. "You're just, gonna leave me here? Like that?"

"Well, I'm sure he'd know what's up as soon as he sees you..."

Sai raised an eyebrow at him. "You are doing a really good job as a parent, you know that?" She said, before turning back towards the building, not noticing Yagi's look of shock at being considered a parent.

Just the thought him taking care of something that needs constant attention makes him both laugh and shudder. Honestly, he wasn't even sure how Sai survived in the first place.

"Well, I'll best be off then!" And with that, he dashed off, leaving Sai (literally) in the dust.

Sai watched Yagi scamper off, feeling a little betrayal. Just a little. She feels like... she's been abandoned.

Yeah, that feeling.

Taking a deep breath, she dreadfully tread towards the door, slightly nervous on what shows on the other side. Sai carefully knocked on the door, waiting for the person inside to open it. As the door slowly creaked open, she mentally braced herself on whatever the fuck is inside the building. She made a small sound of surprise, as she noticed that nobody was present to open the door.

She warily took a step back. This is getting creepy...

"OH HELLO!" Sai yelped in shock, as an old man suddenly popped out from... up in the ceiling. "Are you lost, kid?" He asked airily, jumping down from his upside down spot.

Sai's not really sure what to say at the moment, or if she should even talk at all. "Uhh..." She muttered instead, staring dumbly at the old man who's half as tall as her.

The old man chuckled, kneeling down to her eye level- curse her lower than average height -as she tilted her head in a puzzled manner. He mirrored her movements, before backing away from her. "Eh? Who are you?!" He exclaimed, as Sai uttered a small sound of confusion.

"What."

"What?" The man asked her back, before doing the previous thing he did before. "Whoa! When did you get so young, Rin-chan?"

...How in the hell did he know her previous name?!

Sai laughed nervously. "Um, I'm Sai, not Rin." She corrected the old man meekly, as he stared at her intently.

"...Who are you again?"

She twitched, smiling in annoyance. Okay then, she's pretty sure the man's fucking with her this time. "Are you serious right now." Sai deadpanned at him, as he kept staring at her, before laughing out loud.

"Heh, guess you really are Rin's brat." He muttered to himself, smirking as Sai looked at him in slight confusion. "Anyway, come on in, kid." He invited her inside, as she followed him and took a look around the inside. "I saw Toshinori left you here without any context."

Sai nodded, rolling her eyes at the thought of the number one hero abandoning her. He'll regret his decision later, and if he didn't, well, Sai will make him regret it. "Yeah, he seems to fear you." She remarked dryly, as the old man raised his eyebrow in amusement.

"Smart observation there, kid." He grinned, as Sai shrugged lazily.

She plopped down on his red couch, laying down on her back as her stomach growled loudly. "Ah, I'm hungry." She drawled, her voice sounding like a childish whine. "Do you have food?" She asked the short man, as he rummaged the fridge. He pulled something out, at which she made a face at.

Er, that looks like it's been there for months. She voiced out her thoughts, in which he shrugged and threw away the rotten vegetables.

"That's all I have, brat." The old man said, as Sai silently groaned at the unpleasant nickname. "Let's just eat outside."

Sai clicked her tongue, standing up from her comfortable spot on the couch. "Whatever. As long as my stomach consumes something edible."

Gran Torino's immediate when he first met Sai was, 'Yeah, this kid's going places someday.'

After all, it's not everyday you can see a natural prodigy. Even if said prodigy lacks drive at the moment.

"What do you think of Toshinori, kid?" He once asked her. Her answer was not what he expected to come from a kid.

Sai hummed. "Ah, the concept of whatever a 'true,'" She made air quotes at the word, "hero is supposed to be." She then shrugged casually, as if she couldn't care less. "I mean, I don't know the masses' opinion of what true heroism is, but I personally think it's nothing flashy at all. Undramatic, abrupt..."

Gran Torino prompted her to continue. "And...?"

"Nothing. Just, it's not about surpassing people, it's about serving them." She said, and left it at that.

He didn't miss the fact that she completely avoided the question.

"...So I'm not really sure if I should judge him, when I haven't got to fully know his heroic persona yet." She suddenly added, at which he nodded in acknowledgement.

Hmm, definitely far from what a normal child would say.

He and the brat would get along, that's for sure.

AN: did i get his personality right hhnnh-