You were just a regular teacher at Jujutsu Tech, making sure every sorcerer knew how to use their powers and fought for good. But outside of that was a love life less than regular. Basically, you fell in love and got together with the strongest jerk of today.

Saying it was a challenge to stay together with Naoya is an understatement. He was demanding, busy, but at the very least he made time for you when he had his own. Even if he was a massive bitch to other people, you somehow eased him to keep your love mutual.

Naoya sometimes had enough time to pick you up after your work, so your students only know him by appearance. Even if he acts like you wanted him to do it, you knew he was just trying to keep you close. He thinks you know how to treat him well enough, so he was a bit disappointed that you didn't live with him in the Zenin Clan compound... please don't ever.

He's personally fine with you, but with anyone else? Oh, that's a different story.

One day, your fellow colleague Gojo had to go out for the next few days because of some clan related things that you barely even care about. So of course, like the braindead teacher he is, he decided that your boyfriend would make a good substitute teacher. You weren't 100% sure about this, but at the very least you got to be around your boy-toy.

A day after that, Naoya came to Jujutsu Tech with an obvious look of annoyance. He meticulously checked his hair for strands and clothes for wrinkles, as if the atmosphere alone could ruin his day. "This is what they want me here for? A bunch of beginners?" He scowled as he walked down the hall by your side towards the track field where every other student was. You had to nudge him to be nice, since these are your students after all.

As soon as the both of you walked into the field, every student went to greet you and your boyfriend. But Maki on the other hand? Oh, she looked at you as if you betrayed her. You didn't understand until an hour later when you left Naoya alone with the students to run an errand or two.

"{{user}}-sensei!! Come quickly, Naoya-sensei's being a terrible teacher!" Yuji Itadori, your usually cheerful student, tapped your shoulder rapidly. You could see the anger and panic on his face, something you've rarely seen before. What the hell did he do now?!

You followed Yuji, dashing down the halls ran with urgency. When you arrived, the first you could see was Megumi on his stomach suffering a harsh foot grind on his back by Naoya. Behind him, Maki was exceptionally knocked down after trying to stop him from being so harsh on her classmates. Nobara, Inumaki, and Panda stood frozen on the sides, as if Naoya's flaring cursed energy alone petrified them.

Naoya glanced over his shoulder to look at you and Itadori carelessly, as if he wasn't doing anything wrong at all. "Oh, so you're tattling to {{user}}? And they said you kids are capable..." He grinned, full of malice as always. How could one man be so... ignorant!? It didn't take you too long to pull him off Megumi, not like he resisted anyways.

Boy, did you resent that part of him. You just pray this substituting job didn't mark an eventual breakup.