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AU; Teachers
Fluff
Ages: Tanjiro- 22 | Giyuu- 22

Tanjiro is a biology teacher and Giyuu is a PE teacher!

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It's a normal day. Spring has started, and Winter has retreated into its slumber for next year. 
This morning is peaceful. The early hours always are; the sun is shining brightly, the birds are chirping, and everyone's starting their day now or is still deep in slumber.

That's not the case for Tanjiro, though. He's late. And now he's rushing around his apartment to get ready. 

His tie isn't properly on, his belt is unbuckled, his shirt is not tucked in, and his buttons are unbuttoned. He has one sock on, and his hair is a complete mess. 

"Oh, shit," Tanjiro curses under his breath as he buckles his belt before tucking the ends of his shirt in his pants. He frantically buttons his shirt up, grabs his hair comb and quickly brushes his hair before running to the bathroom to brush his teeth and wash his face. 

"Shit, I can't believe I overslept—Giyuu's gonna look at me with that face again." Tanjiro thinks to himself as he hurried to brush his teeth. He still remembers that look Giyuu gives him, it's that 'I'm not mad, just disappointed'.

Tanjiro then briskly walks out of the bathroom, puts his sock on, packs his lunch and grabs a random granola bar from his counter to eat as breakfast before sprinting out the door after getting his wallet, phone and keys. 

He lives close to the school where he works at so he chooses to walk there. In this case, run. He sprints down the sidewalk like he's getting chased by a horde of zombies, his backpack holding onto him for dear life, and the granola bar in his hand is forgotten. 

Tanjiro gets to the school just before the gates are about to close, he doesn't stop running even when he's in the school. Many of his students notice him and greet him, but Tanjiro barely gives them a response. 

He busts the teacher's lounge door open, panting and completely out of breath, his face is red, hair is messy once again. One of his backpack straps is slung off his shoulder. There aren't many teachers in the lounge, only Kanae, Gyomei, Rengoku and Giyuu are there. They don't bat an eye at his late and frantic entrance but instead casually greet Tanjiro (except for Giyuu), to which Tanjiro, in a sloppy manner, gives him a breathless grunt and a half-hearted wave on their way. He trudges to his seat, drops his backpack on the floor and plops down on the chair, slumping against it.

It's a normal occurrence for the high school biology teacher to be late.

Tanjiro doesn't even notice Giyuu, who's been looking at him, staring at him, until he turns his head to see Giyuu observing him with that same unreadable expression, but Tanjiro can tell he looks so done with him. Tanjiro's still catching his breath, and he goes down to get his water bottle out of his backpack, but accidentally hits his nose on the edge of the table.

"Ow! What the f—" He winces as he rubs his nose.

Giyuu's eyes widen a little, a bit concerned. "Are you okay?" He asks, reaching a hand out to touch Tanjiro but retreating it because he has no idea why he needs to touch him.

"Yeah, I'm fine, don't worry," Tanjiro says, smiling warmly at Giyuu before he gets his water bottle out of his backpack and chugs down half of the bottle. Giyuu continues to look at Tanjiro, with a conflicting expression in his eyes, which makes Tanjiro raise an eyebrow. "What is it?" He asks.

"Did you eat breakfast?" Giyuu asks. Tanjiro coughs awkwardly, and he shrugs slightly, "Kind of..." He murmurs, his voice trailing off as he rubs the back of his neck.

"Kind of?" 

"Y-yeah, I just ate a granola bar," Tanjiro pauses in his words, and Giyuu waits for him to finish his sentence, hoping he'd say he ate more than a granola bar. He then looks down to see the closed granola bar in Tanjiro's hand, he looks up with an unimpressed expression on his face. "... Yet, I forgot to eat it," Tanjiro stammers.

Giyuu lets out a quiet sigh, "You idiot," he says, tone flat, his eyebrows slightly furrowed, and Tanjiro lets out a small chuckle, his face turning a little red, if it already isn't red enough, from Giyuu's scrutiny and concern.