Chapter 1: I Knew It's A Bad Idea

-Royal London Magic Academy-

"Yoshino, are you up yet?"

The sound of knocking came from the door. It started gently like any normal knock but after one minute of no answer the knocking became harder. After five minutes of no answer, the person at the other end is pretty much banging on the door. Meanwhile, the owner of the room is blissfully unaware of anything as he slept on his desk with drool coming out of his mouth.

As the banging got louder, the sleeping man began to stir. He finally open his eyes and try to get up. Locks of blonde hair fell to place as he stretch his body and got up from his seat. Looking at the clock on the wall the man's eyes widened almost in panic.

"Ohh crap!"

The man quickly moved and put on his robe. Using magic to substitute bath and tidying his clothes, he quickly open his door and rushed out, not noticing his friend who had tried to wake him up slammed by the door he opened.

"Let's see. Tie, blazer, shoes, pants, shirt, robe, everything is here… wait a minute, where's my socks? Ohh hell forget it."

"Oi Yoshino!"

His friend called again but he didn't hear him because of the distance. He quickly ran towards the main building. The ground is already empty when he crosses it to get to the main campus from the dorms which made him even more panicked. He ran pass anything and anyone to get to his class and once he got there, he kick the door open and ran straight to the podium where he usually do his lectures.

"Sorry guys I'm late, got some important stuff to take care of. Anyway today's lesson is… uhh what day is it aga-"

The blonde finally look up to the rows of seats that usually contain his students and can't help but gape when he found it all empty. He checked his watch to make sure that it's not wrong. It's already time for class so they should be here already. He wondered why the class is empty until his friend that he left behind, a brown haired british young man, arrived. He's a fellow faculty like him and only four years older.

"Johnson, why is the class empty?"

The man caught his bread and lean on the doorway before answering.

"It's Sunday."

He curtly reply. That's when Yoshino realized that he had mistaken the day. But he could swear that he started working on Thursday. Although he did remember that the light got cut off twice… wait, those are nights. That meant that yesterday was Saturday and he didn't slept for two whole days until he slept on Saturday afternoon.

"…ohh."

"It's not 'ohh' you mad scientist! Anyway, you're lucky that you have no class on Saturday. I had to fill up for you on Friday so you owe me."

Yoshino rub the back of his head and sheepishly smiled. He got caught up in his research and he didn't even notice that he skipped Friday and Saturday. He really owe Johnson one for this.

"And you woke me up because you want to use that favor?"

"Nope. Just worried. Anyway, what was it that you're working on anyway? It must be something since you totally forgot about everything else."

At the mention of what he had been doing, Yoshino's eyes lit up and Johnson swear he can actually see stars in his friend's eyes. Hell, it's actually sparkling!

"I'm glad you asked. I have just managed to make an amazing breakthrough in my research! You see-"

Yoshino's excitement was disrupted by the growling sound of his stomach. Speaking of which, he had not eaten anything since that sandwich and cup noodle yesterday morning… or was it Friday evening? He can't even remember.

"…let's go get something to eat."

Johnson nodded when he saw the miserable look on his friend's face as his hunger caught up to him. Sometimes Johnson wonder why he's even friends with Yoshino.

They went to café Flowers, a café not far from the academy. It's too troublesome to go to London. To Johnson's surprise though, Yoshino ordered a takeout instead of eating in the café. After getting their takeout, Yoshino went back to campus and walk towards a place Johnson recognize. He should've expected it though. It's a place Yoshino spent quite a lot of time in.

Behind the dorm stood a tree that's not normally found in London, or really anywhere else in England. It is a large Japanese Sakura tree. What's more is that it is Autumn at this time of the year but the tree is still in full bloom. The tree is known as the everlasting Sakura tree and was planted several decades ago by an alumnus.

Yoshino sat under the tree and began eating his takeout. It is his favorite spot in the academy. He said that it reminds him of home. Johnson came here earlier today hoping to find Yoshino because if he's not in his room then he's sitting under the tree either sleeping or working.

"Here again?"

"What's wrong with being here? I like it here!"

"Ufufu, Yoshino-kun is right, there's nothing wrong with being here if he like it."

Someone else said from behind the tree. Yoshino and Johnson took a peek and saw the headmistress of the academy, the ever youthful beauty with long light blonde hair, Elizabeth. Although the woman look like she's only in her twenties, she's actually already around even before Yoshino's father came to London as a student many years ago.

"Headmistress! I'm sorry for not noticing you. Good afternoon."

"Liz? Why are you here? Ohh and good morning… somewhat."

The two of them greeted the headmistress in their own way. Johnson is respectful but Yoshino is more. Johnson didn't even try to scold him though. Apparently the headmistress and Yoshino's parents are friends.

"So Yoshino-kun, I haven't seen you in the past few days. What have you been doing?"

The headmistress inquired as the three of them sat side by side with Yoshino in the center.

"Well… I'll explain while you eat, okay?"

"Hmm? What about your food? Aren't you hungry?"

"What are you talking about? I'm done."

Johnson look at the takeout only to see an empty lunchbox. Somehow Yoshino had conveniently finished eating in the short time they got into their position. Not wanting to think how he did it, Johnson began eating his lunch while Yoshino began explaining.

"As you already know Liz, my goal is to surpass my mother and in order to do that, I want to make something much greater than her current masterpiece."

Yoshino knock on the tree's bark. Johnson wondered why but the headmistress knew. The tree they're sitting under is a magical tree. Although these days the students and faculty mostly knew it as a simple magical tree that never wilts, Elizabeth knew what magic is stored inside the tree.

There are two magic the tree posses; a 'wish granting' magic and 'time' magic. The tree was made by Yoshino's mother, one of the strongest known witch in her youth, to send someone from the future back to where she belongs. Not even Elizabeth who is the headmistress knew how this tree works. In general, maybe, but the details elude her.

Using the power gained from gathering the wishes of the powerful mages of that generation and time magic, that person who was stranded in the past managed to return to the future. There are only two trees like this in existence and both are planted by Yoshino's parents. It is the greatest magic ever done by them, mostly his mother though. The inner working of the tree is so complicated that it can even filter wishes automatically, deciding what kind of wishes to grant based on purity.

The reason why Yoshino stayed in the academy years after his graduation is because he has a dream. He dreamt of surpassing his mother's magic. And after years of study, he finally got it.

"Because mom managed to break through the barrier of time, I have decided to break the barrier of space. And to do that, I will start by proving the multiverse theory correct."

"Proving the multiverse theory correct? That's impossible. The only way to do that is by… you're kidding me right?"

Johnson realized what Yoshino meant. The man even have a smug look on his face that makes Johnson really want to punch him. Elizabeth also realized what Yoshino meant and gasped.

"The power to open a gate to parallel worlds? You managed to make such magic?"

Yoshino grinned and nod his head.

"Is this really safe?"

Johnson asked. Yoshino wave away his concern.

"Relax. I've done calculations and even tested out several stuff. It should be safe… somewhat."

Needless to say, Yoshino's words did not bring him any confidence. Elizabeth stand on the sideline while watching Yoshino drew a magic circle on the floor of his dorm room. She even took several notes and noticed many interesting things. For one, the magic circle Yoshino drew is a completely new one simply because it's NOT a circle.

Magic circle were called such because they are circle but what Yoshino is drawing is more aptly called as a magic triangle. But this is the first time she saw someone using a triangle for… well, for anything really. He also uses celtic runes. Not really rare but most people prefer to use Nordic runes and Yoshino also prefers those so it's again unusual. There are also several other strange details but she'll ask about those later.

"Okay, it's done. Now let's start this. Liz, Johnson, please stand on one edge of the triangle."

""Ehh?""

Johnson and Elizabeth was surprised by what Yoshino asked.

"Well, to be honest, I will need help. I did manage to make a magic that could open a dimensional gate but well, even with my power, I can only open it a little bit and only for a short moment. I haven't adjusted it yet."

Elizabeth and Johnson look at each other and shrugged. Fair enough. New magic, especially something as powerful as opening a dimensional rift, usually have their kinks and will require tremendous amount of power. Normally a Category 5 magician like Yoshino should be able to power most new spells without trouble but considering the scale of magic involved it's not really surprising. After all, his mother needed multiple magicians to create the miracle that transcends time even if she's a Category 5.

"Now, let's do this."

There is no chant. As Yoshino explained, they only need to supply power to the triangle while he does the calculation by himself. The triangle began to glow with black light as more power went to it. And then something happen. A crack formed above the triangle right at the center.

"That is…"

"It's opening."

Yoshino shouted in glee as the crack start to open, this time it is bigger and it forms faster than all his previous experiments. As expected, he was lacking in power in all his previous experiments. As the crack open further, some kind of power leaked from the crack that was when Yoshino knew something is wrong.

"Wait, why is it… ohh damn."

"Yoshino-kun, what is it?"

Elizabeth asked. After seeing the triangle once again and the power it now receives, Yoshino had an expression of worry which does not bode well to Johnson and Elizabeth.

"Uhh, I miscalculated."

"What?!"

Johnson yelled in slight panic. That is not good. Everyone knew that a miscalculation when performing magic could result in a backlash and depending on the magic's power level it could be fatal. And since this is a magic dealing with other dimension, Johnson can't imagine what it will do.

"I used a multiplier! I only managed to make a hole as big as a book by myself so I thought if I want to make a hole big enough for us to enter I will need three people and a multiplier to make it last long enough. It turns out that a category 5 with a category 3 and 4 using the multiplier simultaneously is a bad idea. Now we actually have too much power that it's going to overload."

"Overload?!"

No sooner had Johnson yelled the triangle's light got brighter and brighter. Before it explode though, Yoshino managed to blast open the door and with a flick of his wand send the two of them out and close the door again. The last thing he saw is the crack fully opening and the magic circle below him explode.

When Yoshino opened his eyes once again, he is floating. He look around him to see where he is. What he saw awed him and made him nervous at the same time. He is in a place that can only be described as… a kaleidoscope. Seriously, it's the only thing he could think of that could describe what he's seeing.

There are so many patterns and colors all over the place that it could make him dizzy. But one thing is for sure, his experiment succeed more or less. It's just not in the way he expected.

"This is…"

"This place is called the Dimensional Gap."

The a voice replied to the unasked question. The voice came from behind him and sounded more like a growling animal than a human. Yoshino gulped and turn around. Behind him floats a gigantic red dragon and he's staring it right in the eyes.

"…this is probably the worst idea I ever had."

Welcome to my new story. I've been planning to have something that focus strictly on Serafall and after so long I finally got an idea. So the idea is a magician from another world did an experiment on dimensional travelling. A mistake in calculation ended up sending him to the DxD world where he will meet Serafall (next chapter). By the way, I borrowed a certain series I love as base for this first chapter. I wonder if anyone noticed? It's not my best idea but at least let's see how this will go before making any judgement, savvy?