Disclaimer: Still don't own Digimon or JP. JP's mantra is CO one of my teachers.
The heap of digi-destined landed in a pile of flailing limbs on the floor of the Room of Requirement. Ken got a wonderful view of under JP's desk, where dust-bunnies the size of real ones lurked in the shadows. By the time the group got untangled as well as their digimon partners un-stuck, Ken realized he had gotten a paper-cut on his nose.
JP just stood in the side-lines with Elecmon and laughed.
"Do you consider this funny?" Snape spat at JP when he finally re-gained his footing. "How the bloody Hell are you standing up?"
"I'm pretty good at what I do Professor," JP shrugged. "That was child's play. Sticking your head out of a beeper…that's more difficult."
"Are you staying?" Ian asked as he held Trimon in his arms. "I mean, you're our temporary advisor."
"I don't think so," JP said, sitting back in his chair. "Advisors just watch how things play out…no real involvement or anything."
"Well, if you are to be our Advisor, you shall have to get familiar with our world," Snape said simply. He shut his eyes for a moment, and a set of wizard's robes appeared in his arms. "You shall be attending Hogwarts as my apprentice. You will not need to use magic, so that won't be a problem. If you wish to save our world, you must live in it."
JP looked down at the robes and gulped. He never wore a uniform. That wasn't a thing Advisors did. They could just dress how they wanted; no dress code required. This was so unfair…so horrible…so ironic.
JP would have to take his own advice for the first time in his existence.

"Okay, if you can see up it, down it, or through it, don't wear it," JP said as he surveyed his robes for the umpteenth time. He had been chanting it all morning. "I think I'm okay."
JP had been forced to wear career-oriented clothes by Professor Snape. If he didn't comply, JP would never know what it was like in the Magical World. If he didn't know the world, then how was he supposed to help save it?
Besides…Snape scared the crap out of him.
"You look great," Elecmon said as JP re-adjusted his tie. "You'll have a wonderful first day."
JP was wearing his usual outfit. Black pants, black tie, white dress-shirt. He was not happy that he had to wear a belt and tuck in his shirt. He was even more upset that he had to where boring old dress shoes too. He missed his sneakers.
"I hope you're right," JP replied, patting the digimon on the head. It let out a sound sorta like a purr. "If you want anything, just hail a House-Elf."
"I will," Elecmon said, waving a clawed hand. "Good luck."
JP cast a nervous glance over his shoulder before closing the door, hoping Elecmon was right.

"We have Potions next," Della said, not looking up from her crinkled schedule. "I wonder how JP's doing."
"Bet he's great," Ian said, trying to dust off the purple soil that some foreign plant from Herbology had kindly left on his robes. "He does jobs all the time; a little Chemistry should be no problem."
"He has Professor Snape as his supervisor though," Ken sighed. "He'll probably take out all his frustrations on JP. I hope he doesn't make a complete fool of himself."
"Hey, bucker up," Ian smiled. "We have digimon now! We're the saviors of the world and all that stuff."
"Yeah, well it's all fun and games till someone gets possessed by Darkness and tries to take over the Digital World," Ken mumbled under his breath. Ian and Della had both read his file so they'd know his past a bit better.
"Hey, that's all in the past Ken," Ian shrugged dismissively. "You were stupid…we all make mistakes. But we need to get over it. Besides, we have bigger fish to fry. Like trying to get through this class without having to go to the Hospital Wing."
The three friends laughed and headed into the Potions classroom.

"This is second-year Potions," Professor Snape drawled after the entire class had been seated. "So if any of you dunderheads are in another year and are not re-taking this class, then leave."
Ken, Ian and Della watched in amazement as a girl with blue hair let out a squeak of surprise. She skedaddled out of the room, toppling a chair in the process. She let out another squeal and left the room with a bang. Ken heard Snape mumble something about a third-year girl who would just not leave him well enough alone. Ken sympathized; as the Digimon Emperor, he had had fan-girls too.
"This year I will be having an apprentice for this class," Professor Snape said, as the threesome sat at attention. "His name is Mr. Perez. He is a Squib and therefore has no magical ability whatsoever, but I have graciously taken him in so he can make some sort of living."
Snape gave JP a half-smirk as the humanoid came up to the desk. JP had made his ears look normal, and was wearing a set of robes with his shirt tucked in. He looked awfully uncomfortable and embarrassed.
"Hi everyone," JP said, plastering a huge grin on his face. He would just have to make Snape look like a complete moron then. "It's nice to meet you all. I'm sure I'll get to know each of your names soon enough. I may not be able to do magic, but since 'there will be no foolish wand-waving or silly incantations in this class,' I think I'm safe."
The entire class burst into hysterics as JP did a perfect Snape impression. He even made his robes billow in a Snape-like manner and glared at them all with his still-sparkling black eyes. Snape may have been staring daggers at him, but JP must have put his glare-proof vest on that morning.
"Now that introductions have ended, we shall commence class," Snape said, smirking at JP. "My apprentice shall put the instructions on the board."
JP sighed as Snape gave him a heavy textbook and indicated the page to copy it from. JP did not make a fuss, just took a piece of chalk and strode over to the black-board. He purposely made his robes billow for fun.
For the first time in their lives, the students could read their Potions instructions correctly.
JP's printing looked like it was done on invisible ruled paper, it was that neat. Each letter was perfectly formed, completely and utterly legible. Snape's unmanageable scrawl looked like hieroglyphics in comparison. Everyone understood the instructions, and got to work.
Needless to say, no cauldrons exploded during the entirety of that second-year Potions class.