1/3

Shinazugawa Sanemi, a math teacher at Kimetsu Academy.

It was the usual day at school, very boring and also very draining. Teaching people math was a real pain in the ass, but nonetheless, he enjoyed watching his students cry and suffer when they see the equation on their exam paper.

Today, he gave them a quiz because someone was a bit behind, very behind on their studies. That someone was his poor little brother. Like honestly my guy, just tutor him smh.

He sat on his chair calmly, his finger tapping on the table, his eyes not leaving the ring. Yes, he's engaged. The moment the class knew, they went ballistic. But that's for another chapter.

It took him quite the time to get (Y/N)'s ring size. He wanted to take it without being suspicious. It's not like he can just take her to the store and get her finger measured.

But that's not our story for today as well.

'These kids better be done.' He thought, glaring at the watch on his wrist. 'I gotta pick up Shiro at the daycare...'

And just as silence filled the room, his phone began to ring, some of the students flinching in surprise, Zenitsu even cried, earning a smack on the head by one of his classmates. It was Kanao.

"Get back to the exam." He said with a sigh, taking his water to hydrate himself. He took his phone, looking at whoever messaged him. It was (Y/N). He opened his phone, going over to the messages and clicked on her name.

The students watched in curiosity as to who was the person that caught their teacher's attention like that. Like, Sanemi never texts or use his phone in class unless it was an emergency or that one time he heard him 'don't take all of the chocolate' to someone.

"PPF- WHAT THE FUCK!?!" Every jump at Sanemi's sudden loud voice and more and more curse words left his mouth and he began to panic, his face pale. "OhwhatthefuckishappeningrightnowIcan'teve- I don't-"

Sanemi passed out. [I-]

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"What was happening in your classroom, Zenitsu?" Tanjiro asked the blond who looked shaken up, along with Genya beside him. Kanao looked normal. "I heard Shinazugawa-sensei screaming. It was very concerning."

"What the hell do I know? Shinazugawa-sensei just passed out in the middle of class and I don't even want to ask what he saw because I'm sure whatever it was, it was enough to knock out that demon..." He muttered, hugging his knees close to his chest.

"Okay...? Genya, do you know what happened?" Tanjiro turned to Genya who looked as shaken up as Zenitsu, but he wasn't muttering and mumbling like Zenitsu.

Just as Genya was about to answer, three sets of hands slammed on their table. They looked up to see the Tokito twins and Koichi. The three of them looked so shooked and scared.

"DID YOU SEE IT, GENYA!? DID YOU!?" Yuichiro exclaimed, slamming the table again and again. "Did you fucking see it!?"

"No.. what are you talking about?" Genya asked in confusion. The three of them looked at each other and turned into a circle. After a while, they looked over to Genya as Koichi took his phone and called for him, away from the group. "What is it?"

"Here." Koichi showed Genya the phone.

Genya's eyes widened in surprise and his mouth hung open. "WHAT THE- FOR REAL FOR REAL!?"

"YEAH IT'S FOR REAL!!" Muichiro nodded.

"What are they talking about?" Tanjiro asked, raising a brow at the four of them.

"I'm guessing it has something to do with Shinazugawa-sensei and (Y/N)-san..." Nezuko said, suddenly feeling worried that it had something to do with (Y/N).

The group then turned to Kanao who seemed to be too silent. Why yes, of course, she knows. She got the news from her sister a while ago and she's very good at keeping secrets. Well... that was if someone didn't ask her or if she's specifically told not to tell.

"OI!? What's happened!? Why are you suddenly panicking!?" Zenitsu asked, dragging Genya by the collar, shaking his head and forcing him to tell what he learned.

"Ehehe..." Koichi grinned along with the twins, motioning to circle up and lower their voice. "Gather round, gather around you pieces of crap, not you Kanao-senapi and Nezuko-san, I'm about to tell you something that's only family content..."

He paused, smirking as he glanced over to the twins, nodding and agreeing to tell the news.

"Nee-chan's pregnant."

There was a pause within the group. It was the silence before the disaster.

"WHAAAAAT!?!?" Nezuko and Zenitsu exclaimed, gasping as they heard the news.

"Is it true!? IS IT TRUE!?" Nezuko asked, placing her hands on Koichi's shoulders and shaking him violently. Tanjiro had to step in and stop his sister from sending the poor boy to the infirmary.

"Well, I just said that she's pregnant." Koichi said, fixing his uniform after a near to death experience. "And I'm not lying. Nee-chan sent us a picture from her check-up with Kocho-sensei and Kanroji-san." 

"That's great! Please tell (Y/N)-san and Shinazugawa-san our regards!" Tanjiro said, patting the three middle schoolers a pat on the back. "It must be exciting to have their first child!"

"First brat?" Inosuke spoke up ever since the start of the chapter since he was just vibing on the side and eating everyone's lunch since they were too occupied on what the fuck was happening. "I thought their first brat was Shiro?"

Tanjiro, Nezuko and Zenitsu seemed to lag for a whole minute before they just asked what he meant.

"You dunce. I'm saying that their first brat is Shiro." Inosuke repeated, snatching Zenitsu's lunch.

"Wait... you guys don't know?" Yuichiro asked, pointing to the three of them who had zero clues. They shook their head, still zoned out from hearing the news. "Then why don't you come with us to daycare?"

"Day...care?" Zenitsu asked, the boys nodded. "How old is this Shiro kid?"

"Two, well, nearly three." They answered.

Zenitsu passed out.

They shrugged it off, Yuichiro smacking Inosuke for taking their food and Kanao making him share all of his stolen food.