Jujutsu Kaisen X OC (The Red String of Fate)

Just The Beginning

(A/N: This happens after the baseball match, after smexy smexy time. Refer chapter 'My Husband and My Lover.')

Sadako's POV

"What are you two up to?" Gojo's voice cut through the tension as he entered my room. 

Sukuna and I were seated across from each other, me shooting daggers at him while he lounged on my bed with an air of nonchalance.

"Oh, nothing much! Just giving him a piece of my mind," I replied, snatching the reports from Gojo detailing the first years' progress.

"Heh, the great Sukuna getting a scolding? That's quite amusing!" Gojo teased, earning a glare from Sukuna.

"Who the hell do you think you are, woman?!" Sukuna, in Itadori's body, grabbed my collar, but I refused to back down, tearing my gaze away from the papers to meet his defiantly.

"I've already undergone my awakening, and I'm certain I'm stronger than you, Mr. Three Fingers," I retorted, gripping his wrist tightly. "Do you want me to wipe the floor with you?"

Sukuna relented, withdrawing his hand with a sullen expression. Gojo and I discussed assigning the kids a few more complicated missions to gain additional experience before he eventually left.

"Now, where were we?" I questioned, crossing my arms over my chest. Sukuna sat on the bed opposite me, wearing a deep frown.

"I didn't expect to encounter you again so..." he began, his voice trailing off.

"SO?! YOU LIED TO ME?!" I exploded, causing him to wince and rub his ears.

"Hey! I was just..." Sukuna mumbled, attempting to divert the conversation by pulling on my toes to crack them.

"What do you mean 'I was just'?!! You bastard!! You lied and said we didn't get married!! You made me drink your BLOOD on my marriage day!!"

"And what do you mean I didn't call yourself Sukuna?!! What else did I call you?!! A piece of shit?!! How dare you say my blood didn't taste good?!" I smacked his head in frustration.

"You can't just deceive a naive girl like that! I trusted you!!! How could you do something like that?! And 'Sadako didn't call me Sukuna'!" I mocked mimicking him, rolling my eyes in disbelief.

"Hey!! You take that back!! You eventually stopped calling me Sukuna and started calling me Ryomen!!" Sukuna yelled in defense. "Whose fault was it?!!" I yelled back, seething with anger.

'What an asshole!!! If I were in Inari's place and found out you were lying, I'd have been devastated and disappointed!!'

"Just what were you thinking---?!" I wanted to scold him more but Sokuna-Sama seem to have different plans. Oi, get back here!" Sukuna disappeared as Itadori took over. 

"That son of a bitch!" I grumbled, feeling annoyed and betrayed.

"What do you mean lying?" Itadori lifted my ankle, kissed my legs, then scooped me up and hugged me into his arms, before settling down next to me and turning off the light.

"Huh...? Oh, that?" I leaned against the headboard with Itadori resting on my lap, absentmindedly playing with his hair. "You know, when Inari asked Sukuna if she was Sadako?"

"Yeah... He said she wasn't you and you weren't her or something," Itadori nodded. "But he was a lying bastard! Sukuna knew, he knew from the very beginning that I was Sadako," I explained frustrated.

"I see... So why did he hate you so much that he wanted to kill you?! Did you hate each other in the past too?" Itadori's curiosity was piqued, his interest fully engaged in our conversation.