"Today, we'll cover Curtains."
That morning, Megumi Fushiguro stood at the lectern and tapped the blackboard, staring at Itadori.
"Especially you, Itadori, and Sukuna. By the end of today, you must learn how to cast a Curtain and configure its settings."
Then he wouldn't have to worry so much the next time those two went running off.
-Those little troublemakers had no consideration for the old dad left holding down the fort.
Sukuna didn't care. With a thousand-year-old foundation of knowledge, he figured he would pick up something as simple as a Curtain, which everyone knew how to cast, after hearing the explanation once~
"You got it!"
Itadori answered enthusiastically. He also thought this was essential to learn, and brought out the same determination he'd had when learning Black Flash.
Then, less than ten minutes later, he felt like he was about to fall asleep.
...My God, why were Curtain settings so complicated?
They had to distinguish between entering and exiting, add specific identifying information, differentiate between those with cursed energy and those without, and account for all sorts of situations involving sorcerers, curses, and ordinary people...
It was such a jumble that his head was spinning.
"Sukuna, did you understand that?"
He whispered the question to Sukuna. He felt he needed backup.
Sukuna was struggling a little too. Why did it feel like his memories had nothing on this subject...?
...Had his past self barely ever used Curtains?
-What was a guy coasting on his old knowledge supposed to do now?
Still, he had to learn. Otherwise, they could easily cause chaos when they went out. This time, someone else had cast a Curtain in the mountains, which was fine, but things would get awkward next time if no one helped them cast one.
He hesitantly suggested to Tiger,