Lesson Learned

Mitsuko gaped when Koro-sensei generated multiple versions of himself to help them study.

"Midterm time has rolled around!" Koro-sensei reminded them all. "And that's why this period will be spent in high-speed enhanced test studying!"

She grimaced, thinking back to the fast-paced lessons A-Class had. Her uneasiness grew as she stared down at the textbooks on her desk, gripping her pen tightly.

I can't mess this up again.

Then suddenly a copy of Koro-sensei was in front of her.

 "What the hell!!?" She jerked back, staring at him in disbelief while he proceeded to drill her on Japanese revision.

"My doubles can work with you one-on-one to drill you on each of your worst subjects!" Koro-sensei said excitedly.

Mitsuko blinked rapidly as she watched the copy blur in and out of focus, but otherwise stay fixed in the same spot.

It is impressive...

And, despite her original impression, he didn't rush through the learning material while in his high-speed form.

"Are you alright, Mitsuko?" The Koro-sensei copy asked patiently.

"Yes! Sorry..." Mitsuko looked down. 

She looked at the textbook and started on the first problem, frowning faintly as she read through the question and started to work out the answer.

"There's actually an easier way to work this one out," Koro-sensei said brightly. "Just—"

Her eyes widened when a dent appeared in his head.

"Uh..." Mitsuko's eyes widened, feeling a smile tug onto her lips when Koro-sensei became annoyed and told Akabane to cut it out.

The Koro-sensei copy sighed and shook his re-formed head. "Now where was I?"

"You were telling me I was working it out wrong," Mitsuko replied, frowning as she tapped her pen on her desk.

"Not wrong," he said, shaking his head as he pointed to the question in the text. "But you are making it harder for yourself by overthinking it. Some answers a less complicated than you think."

***

When class ended the students started to file out of the room, talking amongst themselves. Koro-sensei was busy talking with Nagisa and Kayano who were on cleaning duty.

Overall it had been a good day.

Mitsuko smiled as she put away her work, and right on cue, Sugaya presented her with the pen she'd leant him for today.

"Seriously?"

"What?" His brow furrowed, re-adjusting his overpacked bag on his shoulder.

She rolled her eyes as she slipped her bag over her shoulder as she stood up from her desk. "You've been borrowing the same pen for over two months—just keep it!"

He frowned, looking at the pen in his palm. "But it's pink..."

"Then buy one yourself," she replied, raising her arms in exasperation as she walked out of the classroom. "They're less than 100 yen a pack."

"Mine always keep breaking," Sugaya said, trailing after her. "Honestly. I might actually be cursed."

"Apparently not when you use pink pens," she replied flatly, stepping out into the hallway. "If it makes you feel less cheap you can just buy it off me." She smirked and leant against the wall. "500 yen?"